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Scientists put several litters of wolf puppies through a standard battery of tests. Many pups, such as this one named Flea, wouldn't fetch a ball. But then something surprising happened.

Fetching With Wolves: What It Means That A Wolf Puppy Will Retrieve A Ball

Nell Greenfieldboyce

Some wolf puppies will unexpectedly play "fetch," researchers say, showing that an urge to retrieve a ball might be an ancient wolf trait and not a result of dog domestication.

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.

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Dog People Live Longer. But Why?

Angus Chen

Hanging out with dogs might be good for your health. A researcher reviews the science and discusses the very real link between dog ownership and reduced risk of dying from cardiovascular disease.

Kayla Fratt and working dog, Tobias, at Grant Village Visitor Center in Yellowstone National Park.

The Unusual Weapon Yellowstone Is Using To Combat Invasive Species

Maggie Mullen

Zebra and quagga mussels can devastate an ecosystem, and Yellowstone National Park is doing everything it can to keep them out. Most recently, that...

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.

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Legal Weed Is A Danger To Dogs. Here's How To Know If Your Pup Got Into Pot

Laura Klivans

As more states legalize recreational and medicinal marijuana, veterinarians are treating more intoxicated dogs who've gotten into THC edibles, discarded joints or drug-laced feces.

Mink, a Boykin spaniel, holds an ornate box turtle that she sniffed out. She is one of a team of specially trained hunting dogs that are helping conservationists and researchers find rare turtles in Iowa.

Good Girl! These Dogs Are Helping Save Habitats By Finding Rare Turtles

Kate Payne

Iowa researchers have implemented an innovative method to help conserve a species that once thrived on the state's prairies 鈥� the ornate box turtle.

Henry, a border collie with the Canadian Avalanche Rescue Dog Association, flies with his handler over ski slopes in the Canadian Rockies. He is one of six dogs profiled in the IMAX film <em>Superpower Dogs.</em>

It's A Bird! It's A Plane! It's ... A Dog Dangling From A Helicopter?!

Ailsa Chang

The IMAX film Superpower Dogsfollows six remarkable canines who work in fields such as avalanche and water rescue, endangered species protection, and emotional support.

An agent from the Bureau of Alcohol, Tobacco and Firearms trains a sniffer dog at its facility in Front Royal, Va.

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In Dog-Eat-Dog World Of Congress, 2 GOP Lawmakers Spar Over Canine Training Facility

Brian Naylor

The ATF facility is in the Virginia district of Rep. Bob Goodlatte, who says Alabama Sen. Richard Shelby wants it in his state.

Health

Pet Owners Beware: First Reported Cases Of Rabies In Colorado Dogs Since 1974

Desmond O'Boyle

In the wake of two dogs testing positive for rabies, the Colorado Department of Public Health and Environment wants pet owners and livestock owners to鈥�