Frogs, like salamanders and newts, are amphibians ... linked by anatomy and other features of their biology. Toads are frogs that, due to the nature of their coarse dry skin, are adapted to spend most ...

The species in this group include frogs, toads, salamanders, and newts. All can breathe and absorb water through their very thin skin. Amphibians also have special skin glands that produce useful ...

It is the only frog in the U.S. that is considered poisonous, although there are some toads and salamanders that secrete ...

A fragment of upper jaw fossil from the Early Cretaceous is among the oldest examples of a toothless amphibian in the fossil record ...

in three main amphibian groups (toads, frogs and salamanders). We completed close to 20 experiments exposing different amphibian species to four PFAS using different exposure routes and length of ...

The petition, filed with E.O. Wilson, Thomas Lovejoy and other scientists, asked the U.S. Fish and Wildlife Service to protect six turtles, seven snakes, two toads, four frogs, 10 lizards and 24 ...

The tiger salamander Ambystoma tigrinum and the Pseudacris ornata or ornate chorus frog, both winter-breeding species, were showing up earlier to breed. Six other species of frogs and toads did ...