Dan Suzio Photography

  • Home
  • Photo Catalog
    • All Galleries
    • Search
    • Cart
    • Lightbox
    • Client Area
  • About
  • Contact
  • Facebook
  • Twitter
x

Search Results

Refine Search
Match all words
Match any word
Prints
Personal Use
Royalty-Free
Rights-Managed
(leave unchecked to
search all images)
Next
138 images found
twitterlinkedinfacebook

Loading ()...

  • Biology student Scott Heacox holds a rhinoceros beetle and larva, Dynastinae, on Atauro Island, Timor-Leste (East Timor)
    10041344.jpg
  • Newly hatched larva of Coast Range newt (California newt), Taricha torosa torosa, clinging to the side of the egg mass; other developing embryos are visible inside. Alameda County, California. Complete life cycle available, including mating, egg-laying, eggs with developing embryos, larval newts, and adults in summer and winter.
    1408-05.jpg
  • Newly hatched larva of Coast Range newt (California newt), Taricha torosa torosa, resting on top of the egg mass after hatching.  Alameda County, California. Complete life cycle available, including mating, egg-laying, eggs with developing embryos, larval newts, and adults in summer and winter.
    1407-08.jpg
  • A male brown-headed cowbird, Molothrus ater, catches an insect larva on a pickleweed plant, Allenrolfea occidentalis, in Saline Valley, Death Valley National Park, California
    11040556.jpg
  • Tadpole of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100886-amargosa-toad.jpg
  • Tadpoles of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100705-amargosa-toad.jpg
  • Tadpole of black-spined toad, Duttaphrynus melanostictus, with four legs.  Dili District, Timor-Leste (East Timor).
    10040648-tadpole.jpg
  • Tadpoles of black-spined toad, Duttaphrynus melanostictus. Dili District, Timor-Leste (East Timor).
    10040636-tadpole.jpg
  • Carterpillar of Owl Butterfly, Caligo sp., in the butterfly garden (mariposario) at Restaurante Selva Tropical, Guapiles, Costa Rica
    17050081.jpg
  • Blue-sided treefrog, Agalychnis annae, also known as the Golden-eyed Treefrog, Coffee Frog, or Monkey Frog, an endangered species. A small population has been established in the gardens of the Hotel Bougainvillea, Santo Domingo de Heredia, Costa Rica
    17050058.jpg
  • Tadpole of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100903-amargosa-toad.jpg
  • Tadpoles of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100778-amargosa-toad.jpg
  • Carterpillars of Owl Butterfly, Caligo sp., in the butterfly garden (mariposario) at Restaurante Selva Tropical, Guapiles, Costa Rica
    17050082.jpg
  • Tadpole of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100896-amargosa-toad.jpg
  • Tadpole of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100894-amargosa-toad.jpg
  • Tadpole of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100852-amargosa-toad.jpg
  • Tadpoles of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100703-amargosa-toad.jpg
  • Tadpoles of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100701-amargosa-toad.jpg
  • Katydid nymph on Bush monkeyflower, Mimulus aurantiacus, Mount Diablo State Park, California
    07040114-katydid.jpg
  • Metamorphosing black-spined toad, Duttaphrynus melanostictus, on the photographer's index finger.  Toadlet has four legs and is able to breathe air and walk on land, but has not fully resorbed its tail.  Dili District, Timor-Leste (East Timor).
    10040659-toad.jpg
  • Metamorphosing black-spined toad, Duttaphrynus melanostictus. Toadlet has four legs and is able to breathe air and walk on land, but has not fully resorbed its tail. Photographed on a US dime to show its size. Dili District, Timor-Leste (East Timor).
    10040658-toad.jpg
  • Metamorphosing black-spined toad, Duttaphrynus melanostictus. Toadlet has four legs and is able to breathe air and walk on land, but has not fully resorbed its tail. Photographed on a US dime to show its size. Dili District, Timor-Leste (East Timor).
    10040654-toad.jpg
  • Metamorphosing black-spined toad, Duttaphrynus melanostictus. Toadlet has four legs and is able to breathe air and walk on land, but has not fully resorbed its tail.   Dili District, Timor-Leste (East Timor).
    10040652-toad.jpg
  • Tadpoles of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100706-amargosa-toad.jpg
  • Katydid nymph on Bush monkeyflower, Mimulus aurantiacus, Mount Diablo State Park, California
    07040116-katydid.jpg
  • Katydid nymph on Bush monkeyflower, Mimulus aurantiacus, Mount Diablo State Park, California
    07040120-katydid.jpg
  • Metamorphosing black-spined toad, Duttaphrynus melanostictus, on the photographer's index finger.  Toadlet has four legs and is able to breathe air and walk on land, but has not fully resorbed its tail.  Dili District, Timor-Leste (East Timor).
    10040660-toad.jpg
  • Metamorphosing black-spined toad, Duttaphrynus melanostictus. Toadlet has four legs and is able to breathe air and walk on land, but has not fully resorbed its tail. Photographed on a US dime to show its size. Dili District, Timor-Leste (East Timor).
    10040656-toad.jpg
  • Tadpole of black-spined toad, Duttaphrynus melanostictus, with hind legs.  Dili District, Timor-Leste (East Timor).
    10040641-tadpole.jpg
  • Tadpoles of black-spined toad, Duttaphrynus melanostictus. Dili District, Timor-Leste (East Timor).
    10040634-tadpole.jpg
  • Tadpoles of Amargosa toad, Bufo nelsoni.  The species is described as sensitive and imperiled by the State of Nevada and U.S. Bureau of Land Management, but is not listed as an Endangered Species.  Oasis Valley, near Beatty, Nevada
    07100865-amargosa-toad.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190066.jpg
  • Tadpole of California red-legged frog, Rana aurora draytonii, Contra Costa County, California. Complete life cycle available, including eggs, tadpoles, metamorphs, froglets, and adults. Red-legged frogs were once abundant throughout California, and were the inspiration for Mark Twain's classic The Celebrated Jumping Frog of Calaveras County. Now, after more than a century of habitat destruction, water pollution, suburban sprawl, and predation by non-native bullfrogs, they've been reduced to a number of scattered, unconnected populations. Federally listed as a Threatened Species.
    06100064-red-legged-frog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, Northern California. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06100023-bullfrog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs beginning to develop. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06140305-bullfrog-tadpole.jpg
  • Eggs of Coast Range newt (California newt), Taricha torosa torosa, with developing embryos, about 2 days old. Alameda County, California. Complete life cycle available, including mating, egg-laying, eggs with developing embryos, larval newts, and adults in summer and winter.
    1387-09.jpg
  • Rough-skinned newt, Taricha granulosa, in larval stage. Mendocino County, California
    06211175-newt.jpg
  • Rough-skinned newt, Taricha granulosa, in larval stage. Mendocino County, California
    06211174-newt.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190047.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190026.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190022.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190012.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180128.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180122.jpg
  • Tadpole of California red-legged frog, Rana aurora draytonii, in duckweed, Lemna sp. Contra Costa County, California. Complete life cycle available, including eggs, tadpoles, metamorphs, froglets, and adults. Red-legged frogs were once abundant throughout California, and were the inspiration for Mark Twain's classic The Celebrated Jumping Frog of Calaveras County. Now, after more than a century of habitat destruction, water pollution, suburban sprawl, and predation by non-native bullfrogs, they've been reduced to a number of scattered, unconnected populations. Federally listed as a Threatened Species.
    06100159-red-legged-frog-tadpole.jpg
  • Tadpole of California red-legged frog, Rana aurora draytonii, in duckweed, Lemna sp. Contra Costa County, California. Complete life cycle available, including eggs, tadpoles, metamorphs, froglets, and adults. Red-legged frogs were once abundant throughout California, and were the inspiration for Mark Twain's classic The Celebrated Jumping Frog of Calaveras County. Now, after more than a century of habitat destruction, water pollution, suburban sprawl, and predation by non-native bullfrogs, they've been reduced to a number of scattered, unconnected populations. Federally listed as a Threatened Species.
    06100145-red-legged-frog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, Northern California. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06070017-bullfrog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs beginning to develop. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06140299-bullfrog-tadpole.jpg
  • Rough-skinned newt, Taricha granulosa, in larval stage. Mendocino County, California
    06211169-newt.jpg
  • Rough-skinned newt, Taricha granulosa, in larval stage. Mendocino County, California
    06211168-newt.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190084.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190077.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190076.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190020.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190010.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with four legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180188.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with four legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180183.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180137.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with four legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180107.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with four legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180096.jpg
  • Tadpole of American bullfrog, Rana catesbeiana.  About the time the front legs emerge, the small round mouth of the tadpole widens and transforms into that of an adult frog.  Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180059.jpg
  • Tadpole of California red-legged frog, Rana aurora draytonii, in duckweed, Lemna sp. Contra Costa County, California. Complete life cycle available, including eggs, tadpoles, metamorphs, froglets, and adults. Red-legged frogs were once abundant throughout California, and were the inspiration for Mark Twain's classic The Celebrated Jumping Frog of Calaveras County. Now, after more than a century of habitat destruction, water pollution, suburban sprawl, and predation by non-native bullfrogs, they've been reduced to a number of scattered, unconnected populations. Federally listed as a Threatened Species.
    06100141-red-legged-frog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, Northern California. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06100029-bullfrog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, Northern California. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06070020-bullfrog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, Northern California. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06010164-bullfrog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, Northern California. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06010108-bullfrog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs beginning to develop. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06140308-bullfrog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs beginning to develop. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06140307-bullfrog-tadpole.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs beginning to develop. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06140303-bullfrog-tadpole.jpg
  • Santa Cruz garter snake, Thamnophis atratus atratus (Thamnophis couchii atratus), eating tadpole of California red-legged frog, Rana aurora draytonii, a Federally listed Threatened Species. After capturing the tadpole in deeper water, the snake brings it to shore and swallows it, then stretches its jaw before returning to the water. Foothills of Mount Diablo, California. Once abundant throughout California, red-legged frog populations have been dramatically reduced by habitat destruction, water pollution, suburban sprawl, and predation by non-native bullfrogs. Red-legged frogs and garter snakes have always occupied the same habitats; predation by these native snakes is not considered a significant factor in the frogs' decline.
    r943seq.jpg
  • Sierra newt (California newt), Taricha torosa sierrae, larval stage. Sierra National Forest, California. Complete newt life cycle available, including mating, egg-laying, eggs with developing embryos, larval newts, and adults in summer and winter.
    1513-22.jpg
  • Eggs of Coast Range newt (California newt), Taricha torosa torosa, with developing embryos, about 19 days old. Alameda County, California. Complete life cycle available, including mating, egg-laying, eggs with developing embryos, larval newts, and adults in summer and winter.
    1401-36.jpg
  • Eggs of Coast Range newt (California newt), Taricha torosa torosa, with developing embryos, about 12 days old. Alameda County, California. Complete life cycle available, including mating, egg-laying, eggs with developing embryos, larval newts, and adults in summer and winter.
    1397-12.jpg
  • Rough-skinned newt, Taricha granulosa, in larval stage. Mendocino County, California
    06211179-newt.jpg
  • Rough-skinned newt, Taricha granulosa, in larval stage. Mendocino County, California
    06211176-newt.jpg
  • Rough-skinned newt, Taricha granulosa, in larval stage. Mendocino County, California
    06211165-newt.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190091.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190079.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190072.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190060.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190053.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190040.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190034.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190023.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190019.jpg
  • American bullfrog, Rana catesbeiana, with partial tail. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06190002.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180192.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with four legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180177.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with four legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180168.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with four legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180156.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with four legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180141.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with four legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180095.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with four legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180049.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180045.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180041.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180037.jpg
  • Tadpole of American bullfrog, Rana catesbeiana.  As it transforms into a frog, the tadpole's round mouth, adapted for feeding on plants, will gradually widen and take on a shape more suitable for a predator.  Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180014.jpg
  • Tadpole of American bullfrog, Rana catesbeiana, with hind legs. Native to the Eastern United States, bullfrogs were introduced and have become established west of the Rockies. Bullfrogs are large, aggressive predators and prolific breeders, and have seriously depleted native frog populations in many areas of the West.
    06180011.jpg
  • Tadpole of California red-legged frog, Rana aurora draytonii, in duckweed, Lemna sp. Contra Costa County, California. Complete life cycle available, including eggs, tadpoles, metamorphs, froglets, and adults. Red-legged frogs were once abundant throughout California, and were the inspiration for Mark Twain's classic The Celebrated Jumping Frog of Calaveras County. Now, after more than a century of habitat destruction, water pollution, suburban sprawl, and predation by non-native bullfrogs, they've been reduced to a number of scattered, unconnected populations. Federally listed as a Threatened Species.
    06100097-red-legged-frog-tadpole.jpg
  • Tadpole of California red-legged frog, Rana aurora draytonii, in duckweed, Lemna sp. Contra Costa County, California. Complete life cycle available, including eggs, tadpoles, metamorphs, froglets, and adults. Red-legged frogs were once abundant throughout California, and were the inspiration for Mark Twain's classic The Celebrated Jumping Frog of Calaveras County. Now, after more than a century of habitat destruction, water pollution, suburban sprawl, and predation by non-native bullfrogs, they've been reduced to a number of scattered, unconnected populations. Federally listed as a Threatened Species.
    06100087-red-legged-frog-tadpole.jpg
Next