Humans’ earliest known relative was likely an egg-shaped creature that ate and expelled from the same gaping orifice some 540 million years ago, scientists reported Monday. Startlingly well-preserved fossils of the tiny beast, dubbed Saccorhytus,…
Humans’ earliest known relative was likely an egg-shaped creature that ate and expelled from the same gaping orifice some 540 million years ago, scientists reported Monday. Startlingly well-preserved fossils of the tiny beast, dubbed Saccorhytus,…