Add Yahoo as a preferred source to see more of our stories on Google. The 'Peter Pan' tadpoles have voracious appetites for their fellow hatchlings and toad eggs. Genetically modified, cannibal ...

Nearly 600 California red-legged frog tadpoles were released into Santa Monica Mountains streams recently, marking an emergency conservation success for a species that vanished from the area more than ...

Tadpole species that lost their lungs through evolution never re-evolve them, even when environmental change would make it advantageous—bucking long-standing assumptions about how lost traits can ...

With 8.2 billion people in the world, cities are constantly expanding, rapidly altering the environment. Animals that undergo complete metamorphosis, such as frogs, may face bigger challenges as they ...