Title for 'Earth's first animal' likely goes to simple sea creature, MIT News

New MIT research suggests the first animal to appear on Earth was very likely the simple sea sponge.

First animal to appear on Earth identified — and its ancestors are

Earth's First Animals May Have Been Sea Sponges Science, 43% OFF

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Meet 'Earth's First Animal

Study pinpoints timing of oxygen's first appearance in Earth's

Earth's First Animals May Have Been Sea Sponges Science, 43% OFF

This Simple Sea Creature Might Have Been Earth's First Animal

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Scientists have discovered what the very first animal on Earth was

What did the earliest animals look like?

Study: Simple Sea Sponges Were Earth's First Animals

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