Cherished memories made by a funny dog and its baby brother together.

Tiny people giggle at everything from tickling to peek-a-boo to silly faces. But do they really have a sense of humor?

“Motherese” is the cutesy language we use around preverbal infants. It serves important roles in language development and emotional coregulation. But why do we use it with animals? Domestication ...

One of the top reasons that pets end up in shelters is that owners are expecting a baby. Somewhere along the line, a rumor started that you can’t have both — a new baby and a pet. But that’s simply ...

Last Word is New Scientist’s long-running series in which readers give scientific answers to each other’s questions, ranging from the minutiae of everyday life to absurd astronomical hypotheticals. To ...