A pigeon can find its way home from somewhere it has never been. But knowing which way is north isn't enough—and experiments reveal a far more remarkable navigation system.
Early exposure to dogs has been linked to differences in infant gut microbiota and some allergy outcomes. But does growing up with a dog actually protect children from allergies? The answer is more complicated than it seems.
Dogs can change what they show people depending on who is watching, sharing, or competing with them. Research suggests flexible, sometimes misleading behavior without proving human-like lying.