This large-and-in-charge breed distinguished by big ears and a spotted coat is actually "a hybrid cat created by breeding a captive wild cat (the Serval) with a domestic cat," says Dr. Delgado.

Even the smallest domestic cat breed – the Singapura – might become rambunctious or territorial. On the opposite side of the scale, there are several "big cat" species known for their size.

The Maine Coon breed dwarfs pretty much all other breeds of feline that you might welcome into your home. Sergey Ginak / Shutterstock ...

Like domestic cats, lions have superb night-vision. Their prey didn't see them coming but you did, as infra-red technology revealed what went bump, howl and roar in the African night. The Big Cat ...

When you need serious cuddles, there isn't much that can beat a bundle of purring, furry floof, and that goes double for a supersized bundle of purring, furry floof, like these 10 biggest cat breeds.

Beyond their fluffy coats and long tails, Maine Coons possess greater heft than any other domestic cat breed, prompting many in the cat world to wonder: What's the world-record largest Maine Coon cat?