Before giving an answer, let's think for a second about the kind of thing we can learn even from so commonplace an event.
How is it that cats can sleep so much? Learn more on this Moment of Science.
Domesticated cats tend to show much less variety. A Siamese and a tabby are both shaped like, well, cats. While there are many different breeds of dogs.
Many people believe that cats became domesticated in Egypt, but a genetic study suggests that feline ancestors originally came from more humble roots.
Anyone who owns a cat is familiar with the head-bumping way they greet you, but what does this behavior mean? Learn more on this Moment of Science.
Sure your cat's whiskers are cute but do they serve a more practical purpose?
Now, every cat scats, but if you have more than one indoor cat and you're interested in finding out which cat is the alpha, you can watch the scat.
Cats send all sorts of nonverbal signals, both to each other and to us humans. One of those signals is a blink. Learn more on this Moment of Science.
Is your cat on the prowl? Find out why cats feel the need to walk the house, on this Moment of Science.
It induces euphoria, and excites the sexual regions of the brain. It is quite possibly hallucinogenic. What is it? Find out on this Moment of Science.