Dinosaurs belong to the reptilian group known as diapsids, which also includes modern birds and reptiles like lizards. Mammals, on the other hand, have their roots in an entirely different branch ...

furry creatures lived in the shadow of dinosaurs and are considered early mammal-like reptiles. They had advanced jaw structures and likely were warm-blooded, which are among the traits that link ...

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and ...

Nor is Dimetrodon or other reptiles in the same group (previously called 'mammal-like reptiles' and now called synapsids). None of these other extinct groups shared the characteristic upright stance ...

The scientists on the team, who are from the Fukui Prefectural Dinosaur Museum in Katsuyama, the Ono City Board of Education and elsewhere, also said a fossil of a mammal-like reptile has been ...

Many groups of insects and mammal-like reptiles disappeared. The trilobites (a type of marine arthropod whose closest living relative is the horseshoe crab) were totally wiped out having been on ...

Alligators can live on land and in water, but that doesn't mean they can breathe underwater like fish. But how long can alligators stay underwater? And how long can they hold their breath? Let’s find ...