Scientists lift lid on turtle evolution

The turtle is a closer relative of crocodiles and birds than of lizards and snakes, according to researchers who claim to have solved an age-old riddle in animal evolution.

DNA sequence enhances our understanding of the origins of jaws

The vast majority of vertebrate species living today, including humans, belong to the jawed vertebrate group. The development of articulating jaws during vertebrate evolution was one of the most significant evolutionary transitions ...

Researchers reveal ancient origins of modern opossum

A University of Florida researcher has co-authored a study tracing the evolution of the modern opossum back to the extinction of the dinosaurs and finding evidence to support North America as the center of origin for all ...

Ancient pygmy sea cow discovered

(PhysOrg.com) -- The discovery of a Middle Eocene (48.6-37.2 million years ago) sea cow fossil by McGill University professor Karen Samonds has culminated in the naming of a new species. This primitive "dugong" is among the ...

Ancient origins of viruses discovered

Research published today in Nature has found that many of the viruses infecting us today have ancient evolutionary histories that date back to the first vertebrates and perhaps the first animals in existence.

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