Alca (Aves, Alcidae) has a comparatively rich fossil record with respect to other Charadriiformes, consisting of thousands of specimens. Despite the abundance of fossil material, species richness in ...

Researchers have tested the biting efficiency of Smilodon, an extinct species of carnivore close to the extant felines. Using high-precision 3D scans and simulation methods, the team has just revealed ...

Evolution has resulted in the development of both herbivores and carnivores -- but how? What type of food did extinct vertebrates eat? And how can we gain insight into the diets of these creatures? In ...

For the vast majority of human existence, extinction has been a one-way process. If a species has gone extinct, the species is forever lost to the world, until now. Thanks to advances in genetics, ...