Scientists find signs of Alzheimer's in dolphin brains

In total, 22 dolphin brains were studied in which researchers noted that the animals presented alterations in their brain chemistry, changes most commonly found in humans who have Alzheimer's.

Watch: Oklahoma firefighters rescue dog stuck in frozen lake

Oklahoma City Fire Department Stations 30 and 40 responded to the rescue. Video of the rescue shows one firefighter who used a paddle boat to reach the dog.

Puppy abandoned at San Francisco airport finds forever home with airline pilot

The puppy named Polaris was left behind by an international traveler who "chose to continue traveling on without his animal," the San Francisco SPCA said.

Dog of the Weekend: Sadie at WCRAS
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Sadie is just shy of her ninth birthday and looking for a home for the holidays at the Williamson County Regional Animal Shelter. WCRAS says she is easy to walk on a leash and seems friendly with other dogs. An Adoption Angel has also paid her adoption fee for the lucky family that takes her in.

Pet of the Week: Pooch Tina from Austin Pets Alive!
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Our Pet of the Week is Pooch Tina, who came out of the Parvo ICU at APA! She's healthy now with the sweetest personality and she's ready for a home. Pooch Tina is 2 months old, 5 pounds, a APA! thinks she's a Shepherd/lab mix.

New pet for Christmas? Here's what you need to know

The city of Georgetown is offering some important information to know if you're welcoming a new furry family member this holiday season.

Llama on the loose in Fairfax County, VA reunited with owner

A llama found loose in Fairfax County on Tuesday has been reunited with its owner, according to the Fairfax County Animal Shelter.