Twins are pretty rare, accounting for just 3% of births in the US these days. But new research shows that for primates 60 ...

Twins have been rare in human history and for that reason can seem special. Many cultures associate twins with health and ...

Despite the fact that almost all primates today, including people, usually give birth to just one baby, our most recent common ancestor, which roamed North America about 60 million years ago ...

That's what your extended family member would have resembled roughly halfway back to the dinosaurs, temporally speaking. We're getting close to your ultimate primate grandparents. But first ...

Scientists discovered that primates spot snakes quickly because their brains are specifically tuned to recognize snake scales ...