The details of how animal life began are a bit murky. Most of the groups familiar today are present in the Cambrian, a period ...
Scientists revisiting mysterious 540-million-year-old microfossils from Brazil have overturned a major idea about early ...
A remarkable fossil discovery in southwest China is rewriting the story of how complex animal life began, showing that many key animal groups appeared millions of years earlier than scientists once ...
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From single cells to complex creatures: New study points to origins of animal multicellularity
Animals, from worms and sponges to jellyfish and whales, contain anywhere from a few thousand to tens of trillions of nearly genetically identical cells. Depending on the organism, these cells arrange ...
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