Eons
How the Squid Lost Its Shell
Ancestors of cephalopods all had shells until it proved to be their biggest weakness.
Ancestors of cephalopods all had shells until it proved to be their biggest weakness.
How did two of the same kind of animal end up looking so different?
Reptiles in time grew to become some of the largest forms of life ever to exist on earth.
In 1912, a fossil collector discovered the world’s only known semi-aquatic dinosaur.
The Cenozoic marks the rise of organisms that look a lot like us.