A groundbreaking study has traced the 66-million-year evolutionary history of primates and overturned conventional thought that our ancestors originally inhabited warm tropical forests. Using advanced ...

The family tree of humans may run deeper than previously thought, stretching back millions of years to small, nimble primates that lived in ancient forests of what is now Wyoming's Bighorn Basin. The ...

What do thumbs and brains have in common? According to recent research, their growth has been linked throughout the evolution of the primates, suggesting that the long thumbs and large brains of ...