Amphibians

Colorado River ToadColorado River Toad (Bufo alvarius)

Bufo alvarius
The Colorado River toad is also known as the Sonoran Desert toad. It is the largest native toad in the United States, measuring 3-6 inches in length. It is olive green to brown in color and has a cream colored belly. Its back is covered in warts along with one or two warts by its mouth.
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Fire SalamanderFire Salamander (Salamandra salamandra)

Salamandra salamandra
This is a smaller species of salamander and is largely noted for their bright coloration. They are black and yellow, sometimes orange. They have large and active parotid glands behind their heads. Their average size is 4-10 inches and they weigh on average 2 oz.
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Giant Marine ToadGiant Marine Toad (Bufo marinus)

Bufo marinus
Giant Marine Toads have surely earned their name, weighing in on average at 2 pounds and the largest being recorded at 16 inches long! Like most toads, hey have large parotid glands behind their eyes that can secrete a toxin if threatened.
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Tiger SalamanderTiger Salamandar (Ambystoma tigrinum)

Ambystoma tigrinum
Tiger Salamanders have a pattern which is unique to salamander, but there’s no doubt where this amphibian gets its name. Resembling a tiger, this animal has black and yellow stripes down its body. They are the largest land salamander and average 4oz and can be 14 inches.
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