Dogs

Humans rely on dogs to search for bombs. But the increasingly common Improvised Explosive Devices can be made with ordinary ingredients — and it is posing a new challenge for bomb-sniffing dogs.

Service dogs help veterans with physical disabilities, and there's increased interest in using dogs for symptoms of post-traumatic stress disorder, too. A study is underway to see whether that helps.

While in vitro fertilization has been successfully used in many species (including humans) for decades, scientists have never managed to use the procedure with dogs — until this summer.

These days, owners are asking for their four-legged friends to be styled as spheres and squares. We visit the Taiwanese grooming shop where the geometric grooming trend took root.

The Duponts in Louisiana loved their mutt Melvin so much they jumped at the chance to replicate him. Melvin is gone now, but he has left behind two clones, Ken and Henry.

A lab in Seoul is the only place in the world known to commercially clone dogs. But often the dog clones are sickly, critics say, and many other dogs are subjected to surgery to make a clone.

Announcing Rex's retirement, police in Albuquerque, N.M., also outlined a sad story, saying his handler recently retired — and that the officer, who has a small child, couldn't take the dog home.

Many people spend summertime in the great outdoors, enjoying simpler living. Reporter Fred Mogul took his city dog to a farm in Pennsylvania to see if she might enjoy exploring her shepherding roots.

Dogs are routinely used by police forces for criminal investigations, drug-sniffing or search and rescue missions. But to LA county K-9 handler Karina Peck, "Indy" the dog is more than a co-worker.

The rise of legal marijuana seems to be fueling a spike in the number of pets that become unhappily high off of pilfered treats. The dose is rarely fatal, but it can be a buzzkill.

Researchers have uncovered 8 million mummified animals dating back 2,500 years. Most are dogs. Archaeologist Salima Ikram says the huge number points to the likely existence of ancient puppy mills.