Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders, and newts. All can breathe and absorb water ...

Imagine a world where the boundaries between “fish” and “not-fish” blur, where the ancestors of birds and mammals once swam ...

Fish can’t move its head independent of the body. Amphibians are the first vertebrates to have a neck, even if it is short & stout. Linked with this advance is a more flexible cranial-vertebral joint.

Vertebrates are animals that have a backbone inside their body. The major groups include fish, amphibians, reptiles, birds and mammals. Invertebrates don't have a backbone. They either have a soft ...

Amphibians are the world's most at-risk vertebrates, with more than 40% of species listed as threatened—and losing entire populations could have catastrophic flow-on effects. Being ectothermic ...

who referred to a 2004 global assessment that found amphibians were the most threatened class of vertebrates. Globally, 37 amphibian extinctions have been documented – 23 occurred before 1980 ...