Learn how fish and amphibians have regions of vertebrae that may act like necks, challenging an common anatomical assumption.

Scientists have long posited that the earliest water animals to transition to land had amphibious tadpole features, going ...

An international research team has developed an innovative method to study the evolution of sperm length in tetrapods. Using the Pareto principle, scientists from Germany and Italy analyzed the ...

"It was very striking." ...

The first African fossils of Devonian tetrapods (four-legged vertebrates) show these pioneers of land living within the Antarctic circle, 360 million years ago. The first African fossils of Devonian ...

We’ve all seen some version of the classic evolutionary diagram. A fish crawls out of a primordial swamp, sprouts legs, ...

Back in 2004, a fossil tetrapod from the Canadian Arctic achieved near-celebrity status, at least for mineralized skulls. The newly discovered specimen, named Tiktaalik roseae, made appearances on the ...

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With so few fossils mapping out the transition debates went on for decades about the details of how vertebrates became adapted to life on land. This was not helped by some delays in the description of ...

Oct. 24 (UPI) --According to most anthropologists, tetrapods were the first animals to ditch the sea for land. The group evolved from fishes, and once on land, they gave rise to amphibians, reptiles, ...

Biologists establish the origin date of the earliest tetrapods and discover they acquired several of the major new adaptive traits that enabled vertebrate life on land at accelerated evolutionary ...