A team led by UC Riverside geologists has discovered the first ancestor on the family tree that contains most familiar animals today, including humans.

Artist’s rendering of Ikaria wariootia
[Credit: Sohail Wasif/UCR]The tiny, wormlike creature, named Ikaria wariootia, is the earliest bilaterian, or organism with a front and back, two symmetrical sides, and openings at either end connected by a gut. The paper is published in…

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Source: archeo