Cats actually have hundreds of facial expressions, study finds

We all know cats’ purrs and meows, but how do they interact with each other? By way of nearly 300 different facial expressions, a new study found.

19-day search for puppy ends happily after community rallies to find her

Homeward Bound the movie came to life in Maricopa this month as a 19-day search for a puppy lost in the desert came to an end. She was thin, matted and scared, but she's home.

Fairfax County Police Department trains new K9 recruits

K9s are vital to helping solve crime. That’s why the Fairfax County Police Department is training some new furry officers.

Maryland man who received second pig heart transplant dies, hospital says

The second person to receive a transplanted heart from a pig has died, nearly six weeks after the highly experimental surgery, his Maryland doctors announced Tuesday.

Watch: Sumatran tiger cubs born at Nashville Zoo get checkup

Three Sumatran tigers have been born at a zoo in Tennessee. Nashville Zoo officials announced that the two female and one male cubs were born Oct. 20.

Irish police investigate high-value bull sperm heist on farm

Two tanks containing a substantial quantity of cattle semen were stolen from the Ballyness Road area over the course of a few days.

Watch: Dolphins guide lost whale and calf back to migration route in heartwarming display

A heartwarming incident occurred near Bunbury Back Beach, Australia, as a pod of dolphins guided a lost mother humpback whale and her calf back to their migration route.

Tarantula on road in Death Valley National Park blamed for crash involving camper, motorcycle

A tarantula crossing the road in California's Death Valley National Park caused an accident between international travelers after one of the visitors braked suddenly to avoid hitting the spider.

48 dogs find homes in 48 hours

In a rapid race for puppy love, 48 dogs were adopted from the Humane Rescue Alliance in 48 hours over the weekend, said a spokesperson from the shelter.

Watch: Spanish police save great horned owl trapped in barbed wire fence

In a heartwarming rescue operation, Spanish authorities, including local police and the Nature Protection Group, came to the aid of a great horned owl trapped in a barbed wire fence near the Limonero dam in Malaga.

Maryland man thriving one month after pioneering pig heart transplant

One month after a Maryland man received an experimental pig heart transplant, the patient is doing well and shows no sign of infection or rejection of the organ, doctors say.