Finally, birds and mammals belong to a richly branching part of the vertebrate phylogenetic tree, most of the branches being grouped as reptiles, while two equivalent branches are given unequal ...

Rabbits and cows are examples of herbivorous mammals. Mammal – A mammal is a warm-blooded vertebrate with fur or hair on its skin. Omnivores – Animals which eat both plants and meat.

Predators and prey in the ocean rely on chemical signals for survival, but this vital sensory mode can also be their Achilles ...

While most mammals of the era were small, about the size of mice or rats, this species was about the size of a modern muskrat. Lead author Jaelyn Eberle, curator of fossil vertebrates at the CU ...