Amphibians & Reptiles

Dig into the excavations of Burke curator Christian Sidor's team and their discovery of fossils of early carnivorous dinosaurs.

When dams cause stagnant lakes to form, frogs may have a harder time reaching opposite sides of lakes and maintaining high levels of genetic variation.

Paleontologists picking through a bounty of fossils from Montana have discovered something unexpected.

Though the lizards may seem like a portal to a bygone era, their habitat and survival faces serious threats today.

Matt McElroy hopes to answer how and why biological evolution occurred in the past, and what role thermal adaptation played in this process.

Northwestern salamander larvae and terrestrial adults are mildly poisonous, which generally allows them to survive alongside predators.

Studying hybrid zones offers a unique view into the evolutionary processes that either generate or extinguish species.

Rock exposures are rare in the icy wastes of Antarctica, but they are the only places where finding fossils is possible.