I recently received a note from a dog trainer that I first met at a meeting of the International Association of Canine Professionals (IACP). She wrote, in part: "I was teaching a beginners dog ...

Modern human faces are surprisingly delicate compared with the jutting jaws and broad noses of our closest extinct cousins. The contrast is not just cosmetic, it reflects deep differences in growth, ...

Crows don’t just remember humans. Here’s a breakdown of how they form opinions, assign reputations and teach each other who to trust. If you’ve ever felt like a crow was watching you a little too ...