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Special Report

Scratch 'n Sniff: A Guide to Cats and Dogs

How did house cats evolve? Can dogs talk? Why do cats purr? Find out, in our definitive report on the science of our best friends

Dogs' Bark: Not fair! Study shows pups get jealous

Scientists have confirmed what pet owners have always suspected: our pooches may pout when they sense another pup is getting favorable treatment.

Researchers at the University of Vienna in Austria report today in the Proceedings of the National Academy of Sciences USA that dogs may be like our human best buds: they get jealous if they feel we're treating another dog better.

December 8, 2008 — Lisa Stein

The Truth about Cats and Dogs

Scientific American magazine Editor in Chief John Rennie talks about the contents of the June issue, including articles on the evolution of cats and the physiology of sled dogs. Plus, we'll test your knowledge of some recent science in the news

May 29, 2009 — Steve Mirsky

The Obamas' Portie: a breed that almost went extinct

The Obamas talked about rescuing a dog from a shelter. They ended up getting pup Bo as a gift from friend Sen. Edward Kennedy, D-Mass., but it turns out the First Family has become part of a 70-year journey to save an entire breed by bringing home a Portuguese water dog to become the nation's First Dog.

April 14, 2009 — John Platt

Know Before You Vote

Know Before You Vote