Smithsonian
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Earth’s oldest animals formed complex ecological communities
Ediacara biota were forming complex communities tens of millions of years before the Cambrian explosion. Read MoreSep 17, 2018
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Evolutionary history of whales, dolphins and sea turtles
The evolutionary history of whales, sea turtles and other land animals that have returned to the sea details the radical changes to their life style, body shape, physiology that they made to survive in an aquatic environment. Read MoreApr 17, 2015