puppies

Alexandra Horowitz is an authority on how dogs perceive the world, but her new book is not a training manual. In The Year of the Puppy, she says there's plenty she doesn't know about canine cognition.

Adorable fuzzy puppies aren't usually thought of as disease vectors. But they come with germs, too. It's not clear how pet-store puppies caused dozens of humans to get sick with Campylobacter.

New research suggests that when puppies have more attentive, active mothers, they're more likely to fail guide-dog training.