"I would say that any modern biologist would, or should, say that birds are reptiles," Martin Stervander, an evolutionary ...

Tree diagrams have been used ... traditional (but misleading) concept of "reptiles," which included lizards, snakes, crocodiles, and turtles, but not birds. Because "reptiles" (in this sense ...

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 ...