May 11, 2018
The animal kingdom is one of life’s great success stories — a collection of millions of species that swim, burrow, run and fly across the planet. All that diversity, from ladybugs to killer whales, evolved from a common ancestor that likely lived over 650 million years ago.
Source: Carl Zimmer, New York Times
http://ow.ly/Jrsv30jQoM9
