(Our happy hour fact to amaze your drinking buddies with.)

Dogs and cats living under the same roof tend to comfortably coexist, especially if they are introduced at a young age.

In a survey of Israeli households with both types of pet, two-thirds reported outwardly friendly relations between the species and less than 10 percent reported aggression.

The numbers indicate that the living arrangements are even more harmonious in cases where the perceived antagonists are introduced before the cat turns six months old, and the dog a year.

This got us wondering what other inter-species rivalries have been falsely hyped in popular culture. Cats and mice? Coyotes and roadrunners? Donald Trump and Rosie O'Donnell?