Add Yahoo as a preferred source to see more of our stories on Google. Cat parents say that some felines share a single brain cell, but few get to see that rare brain cell in action. Luckily for cat ...

"I bet they are siblings," one viewer said, while another added: "Terms and agreements." ...

Viral paw-tapping ritual: Two sibling cats tap paws before play fights, a quirky habit compared to thumb wars and boxing ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Move over Muhammad Ali and Mike Tyson because there's a new boxing icon in town. Meowy the 2 -year-old white ragdoll ...

Add Yahoo as a preferred source to see more of our stories on Google. If you live with more than one cat like I do, there's a very good chance that you've witnessed a few smackdowns from time to time.

Cat parents say that some felines share a single brain cell, but few get to see that rare brain cell in action. Luckily for cat mom and Christmas enthusiast @hayleyhmarie, she had a front-row seat to ...