Zoology

They were concerned its existence could actually threaten its survival

This belemnite swam in what used to be Wyoming seas

It’s meant to help lure prey

It’s a remarkable act of impulse control

The most carefully packed embryo of all the vertebrates

There’s a lot of role reversal happening here

Sex reversal may not be an evolutionary dead end after all

Not every ant is a good samaritan

And they could shed light on our own language acquisition

And, unlike African cheetahs, it was a flexible carnivore

Meet Glyptotherium deuterophractum

Accumulative stone throwing is a rare, potentially cultural, behavior that has been observed among four groups of wild chimpanzees in West Africa