There are millions of different types of living things on Earth. In order to keep track of them all, scientists put living things into groups based on characteristics that they have that are the same.

Dedication to William Buckland / Christopher J. Duffin -- Introduction. Vertebrate coprolite studies : status and prospectus / Adrian P. Hunt ... [et al.] -- History of study. The earliest published ...

A large, crocodile-like animal that lived more than 340 million years ago was one of the earliest vertebrates to have a fast-growing phase in its youth. We're solving the fundamental mystery of how ...

New research from the University of St Andrews has discovered a crucial piece in the puzzle of how all animals with a spine - including all mammals, fish, reptiles and amphibians - evolved. In a paper ...