The ocean is a wild habitat where any keen beachgoer could spy a myriad of marine life that comes covered in shells or swims ...

Learn how starfish got their shape after a complicated evolutionary process, starting with an ancestor that lived 500 million years ago.

Discovery of 500-million-year-old fossil Atlascystis acantha shows how modern-day five-armed starfish and relatives evolved from an ancestor with two ‘arms’ A 500-million-year-old fossil from Morocco, ...

A 500-million-year-old fossil from Morocco, discovered by Natural History Museum scientists, is offering extraordinary new insights into one of evolution's most puzzling transformations: how ...

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How Did The Starfish Become A Star? 500-Million-Year-Old Fossil Solves Evolutionary Mystery From bilateral to pentaradial, the starfish took a basic body plan and ran.