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Axolotl

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This Mexican relative of the Tiger salamander keeps its external gills throughout life, making it a classic example of the retention of juvenile features into adulthood (technically known as paedomorphism…
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Hourglass tree frog

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While "hourglass" is fairly descriptive of the pattern on the back, as with human fingerprints and zebra stripes, each frog has its own unique set of markings, unless, as is…
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Red-eyed tree frog

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For years this amphibian was known either as a spectacular subject of photos, or as a lump-like creature, fast asleep while stuck to a leaf or the wall or glass…
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Marine toad

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The infamous Australian Cane toad was originally native to Tropical America, from South Texas to the Amazon Basin. It can exceed five pounds in weight and attain a snout-vent length…
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Tomato frog

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As with many other brightly-colored amphibians, the color of this frog indicates it can secrete an unpleasant substance when seized, in this case a thick, mildly toxic mucous. Found in…
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Waxy monkey tree frog

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This inhabitant, of the dry Chaco forests in Southeastern South America, has developed some decidedly unfrog-like behaviors. Instead of laying its eggs in water, it builds a nest above it,…
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Yellow-banded dart frog

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Since "leucomelas" means "white and black" in Greek, it is likely this scientific name was assigned on the basis of colorless museum specimens, preserved in alcohol. In life, these frogs…
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Aquatic caecilian

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Very few of the 180 or so caecilian species are easily exhibited in zoos or aquariums, as most live underground. This South American species is an exception, living in water…
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Blue poison dart frog

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When these amazing frogs first appeared in zoos in the 1970s, they created a sensation and remained very rare in collections until the mid-1980s. They are now widespread in captivity,…
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Budgett’s frog

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Named after J. S. Budgett, who studied lungfish, bichers, and amhibians in South America and Africa over a hundred years ago, this unique frog could be said to resemble a…
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