probably to avoid the potentially deleterious effects of breeding with close relatives (inbreeding avoidance). But in many primate species, only the members of one sex leave their natal group (e.g ...

A team of neurologists, bioengineers and radiologists has found that two neurons in the human brain that code for dopamine ...

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 ...

Q: How do these three -- human, chimp, and lemur -- fit into the primate family? A: Primates are divided into three basic groups. There are prosimians, such as the lemurs who live on Madagascar ...