Unlike dogs, which humans have bred over the centuries to do all sorts of different jobs, cats have stayed remarkably true to themselves. We may have shaped their coats and colors, but their personalities and instincts are still very much their own. People first welcomed cats into their lives thousands of years ago — some of the earliest evidence of cats living alongside humans comes from a roughly 9,500-year-old grave on the island of Cyprus.
In all that time we've learned a great deal about what makes cats tick, and a lot of it is genuinely surprising. Their biology and behavior are wired very differently from dogs and most other animals we share our homes with. Here are five of our favorites.
1. A cat's kidneys are built for hunting
Cats descend from desert-dwelling wildcats, and their kidneys are unusually efficient at concentrating urine and conserving water. That's why a healthy cat can get by on remarkably little drinking water — much of the moisture they need comes straight from the prey they eat. It's the same adaptation that lets wild cats thrive in dry climates where water is scarce. (House cats still need fresh water every day, and seawater is never a safe drink for any pet — but the efficient feline kidney is a real evolutionary marvel.)
2. Cats rarely meow at other cats
That insistent meow you hear at dinnertime? It's almost entirely aimed at you. Adult cats communicate with each other mostly without their voices — through scent, body language, tail position, and slow blinks. Researchers believe cats developed the meow specifically to get the attention of humans, who respond to sound. When cats do vocalize at one another, it's usually a low growl, hiss, or howl meant as a warning rather than a friendly hello.
3. Many cats prefer their water away from their food
Plenty of cats like to drink from a bowl, a glass, or even a dripping tap that sits well away from their dinner. One popular explanation traces this back to their hunting ancestry: in the wild, water near a kill could be contaminated by the carcass, so keeping the two apart was simply safer. Whatever the exact reason, lots of cats clearly prefer a little distance between food and water — so if your cat ignores the bowl beside its dish, try moving the water to its own spot and see if it drinks more.
4. A cat's nose print is one of a kind
Just like a human fingerprint, the pattern of bumps and ridges on a cat's nose is completely unique — no two cats share the same nose print. It's a small detail most owners never notice, but it's a genuine biological fingerprint that could, in theory, tell one cat from another. The next time your cat boops you, you're meeting a one-of-a-kind.
5. Cats can be right-pawed or left-pawed
Cats show paw preferences much like people show handedness. When researchers watch cats reach into a jar or fish out a treat, individuals tend to favor one paw consistently. Intriguingly, studies have found a link to sex: female cats more often favor the right paw, while males more often reach with the left. So your cat may well have a "dominant" paw, and which one it is might even hint at whether you're living with a boy or a girl.
These are just five of the countless interesting things about cats. The more you learn, the more you realize that the curious creature napping on your windowsill is every bit as remarkable as the world it watches.