Dogs' olfactory capacity — they can sniff in parts per trillion — primes them to detect disease. Kayla Dear/Getty Images/EyeEm hide caption
dogs
Saturday
Monday
For owners of rescue dogs of mixed breed heritage, it can be tempting to buy a DNA kit to get intel on your pup's ancestry. Catherine Falls Commercial/Getty Images hide caption
Saturday
Sadie, a black, Australian labradoodle, is 7 years old. The idea that she's 49 in human years isn't right. Researchers now say she's closer to 62. Peter Breslow/NPR hide caption
Saturday
If you get to look at dogs and hug them every day, you just might live longer than people who don't have to clean animal hair off their clothes, according to a pair of studies out this month. R A Kearton/Getty Images hide caption
Saturday
Chubbs, right, a golden retriever and his pal Louie, left, a French bulldog, greet their friend at a small dog park in Chevy Chase, Md. Bill O'Leary/The Washington Post/Getty Images hide caption
Opinion: The Real Problem At A Beltway Dog Park? Hint: It's Not The Dogs
Thursday
THC, a key psychoactive ingredient in marijuana, is toxic to dogs, veterinarians warn. So keeping dogs away from discarded joints, edible marijuana or drug-tainted poop is important. Hillary Kladke/Getty Images hide caption
Legal Weed Is A Danger To Dogs. Here's How To Know If Your Pup Got Into Pot
Monday
Hal Herzog, a professor of psychology at Western Carolina University, says the more we attribute humanlike qualities to animals, the more ethically problematic it may be to keep them as pets. Angela Hsieh/NPR hide caption
Thursday
A border collie jumps to catch a flying disc during a competition. New research suggests that dog stress mirrors owner stress, especially in dogs and humans who compete together. Bela Szandelszky/AP hide caption
Saturday
Daisy, the only dog Scott Simon's kids will get, runs on the beach in France. Elise Simon hide caption
Opinion: Want Another Dog, Kids? Let's 'Have That Conversation'
Friday
Some cats can be trained to do the same things dogs can do. Diane Bondareff/AP Images for Purina Pro Plan hide caption
Monday
For most of us, the benefits of a walk greatly outweigh the risks, doctors say. Get off the couch now. Elena Bandurka/EyeEm/Getty Images hide caption
Walk Your Dog, But Watch Your Footing: Bone Breaks Are On The Rise
Friday
The painting "Millie on the South Lawn" by Christine Merrill hangs at the American Kennel Club Museum of the Dog. Mary Altaffer/AP hide caption
Friday
In this Jan. 9 photo, Dr. Erik Clary of Oklahoma State University holds a puppy named Milo, born with his front paws facing up instead of down and unable to walk.The dog is recovering after surgery. Derinda Blakeney/AP hide caption
Friday
Freya, a springer spaniel, is in training to detect malaria parasites in sock samples taken from children in Gambia. Two canine cohorts were used in a study on malaria detection. Durham University/Medical Detection Dogs/London School of Hygiene & Tropical Medicine hide caption
Wednesday
Michelle and Rick Riendeau reunite with Lady, their dachshund who had been missing for five years. Rob Miller/NorwichBulletin.com hide caption