Textbooks say human birth is uniquely hard because of our big heads. A new primate comparison found squirrel monkeys, ...

"Would you rather save your sibling or the monkey?" The post Palantir Cofounder Announces Cruel Plan to Breed Thousands of ...

Palantir cofounder Joe Lonsdale is investing in an animal testing company that aims to secure a national supply chain of monkeys for biomedical testing.

Learn how 3D models of primate birth canals found that squirrel monkeys, bushbabies, and other small species may face a tighter squeeze than humans. A diagram drawn by a primatologist in the 1940s has ...