jaws

This illustration provided by Heming Zhang in September depicts some of the fossil fish, more than 400 million years old, which were found by researchers in southern China, announced in a series of studies published in the journal Nature on Wednesday. The fossils date back to the Silurian period when scientists believe our backboned ancestors, who were still swimming around on a watery planet, may have started evolving teeth and jaws around this time.

‘Jaws’ prequel? Fish fossil catch from China includes oldest teeth ever

This illustration provided by Heming Zhang in September depicts some of the fossil fish, more than 400 million years old, which were found by researchers in southern China, announced in a series of studies published in the journal Nature on Wednesday. The fossils date back to the Silurian period when scientists believe our backboned ancestors, …

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One of The First Animals to Venture Onto Land Went Straight Back Into The Water

One of The First Animals to Venture Onto Land Went Straight Back Into The Water

Approximately 365 million years ago, one group of fishes left the water to live on land. These animals were early tetrapods, a lineage that would radiate to include many thousands of species including amphibians, birds, lizards and mammals. Human beings are descendants of those early tetrapods, and we share the legacy of their water-to-land transition. …

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