Which feline is referred to as the "greyhound of the cat world"? Which is the national cat of Russia? Which cat originated on the Isle of Man? And which breed is the tiniest in all of cat-dom?

Which cat always wears white socks? Which feline is supposed to bring good luck? Which kitty is called the Peter Pan of the feline world? And which breed is the second most popular purebred cat?

Meet the Domestic Shorthair, the British Shorthair, the Munchkin, the Devon Rex, the LaPerm, and the American Bobtail.

Meet the Turkish Van, Snowshoe, Chartreux, Bengal, Domestic Housecat, Fat Cats, and Balinese.

Which feline has the longest legs of any domestic cat? Which breed gave birth to the largest litter of kittens on record? Which feline is considered one of the luckiest? Which large-boned breed doesn't fully mature until they're four years old?

In this episode of Cats 101, get to know the Bambino, Pixie Bob, Australian Mist, Domestic Longhair and Napoleon.

All there is to know about curious, cute and cuddly kittens is right here in this episode of Cats 101.

Meet the Kurillian Bobtail, Chausie, Dwelf, Burmilla, Lambkin, and even the Internet sensation "Klepto Cat".

Which native island cat may have been man's first domesticated pet cat? Which cat is known as the Shirley Temple of the cat world? Which cat only made it past its country of origin just a year ago? Which cat loves to travel along the Italian coast?

Which cat has a sixth finger on its paws that it uses to open doors? Which cat originates from the 125-degree desert? Which former royal cat is meant to have two different eye colors? Which cat works as a receptionist at a local animal hospital?

Which Russian-bred cat can help those who suffer cat allergies? Which cat can come both bald and completely furred? Which cat's personality depends on their fur color? Which cat is often called the world's most rare feline breed?

Meet a handful of little pets that find their way into many hearts and homes.

Meet small and peculiar pets some consider to be part of the family.

Sixteen of the most popular and most adorable clips of animals and infants posted on the Internet battle it out to answer the question once and for all: Which is truly cuter? Puppies or babies (or even kittens).

We take cuteness to a whole new level in this competition for the title of the cutest of all.

And the last cutie standing is...