Evolution is a continuous, powerful force shaping the natural world around us. As environmental pressures intensify, future animal evolution is likely to produce fascinating and sometimes bizarre new ...
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Ikaria Wariootia: The earliest known animal ancestor on the planet has been discovered from South Australia
Scientists have identified Ikaria wariootia, a tiny, wormlike creature that lived over 555 million years ago, as the earliest known bilaterian — an animal with a front, back, and symmetrical sides.
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