Isaac Newton is credited with inventing the cat door.

Isaac Newton is credited with inventing the cat door

More from the Animal Facts niche...

Animal Facts

Researchers have tried mouse flavored cat food. Cats refused to eat it!

Animal Facts

Cats have little resistance against fog, rain, and snow and struggle to

Animal Facts

About 1/3 of the dogs that are surrendered to animal shelters are

Animal Facts

A group of kittens is called a “kindle.”

Animal Facts

Cats use their whiskers to “feel” the world around them in an effort to

Animal Facts

President Theodore Roosevelt’s Bull Terrier Pete ripped the pants off