primates

What's more, these fascinating primates are not naturally so open to human interaction, especially given how dangerous such contact could have been in the past.

No one wants to think about the millions of laboratory rodents and the thousands of macaques and other primates that will be euthanized because the government has reneged on their support.

This could be a marine version of what is known as allogrooming in primates.

"We have what are called 'stud books' for our primates at zoos all over the world," Verrelli said.

Looking at similarities and differences between our closest living relatives, primates, can provide clues into whether music shares a common ancestral origin.