Can cats really
understand us?

The full narration of the video.

Your cat may know what your other cat is called. This isn't a hunch. Researchers tested it in homes with several cats. First, a recording: the owner calls another cat in the house, say, Snowball.

Then a cat's face pops up on a screen. Sometimes it's Snowball, a match. Sometimes it's Patches instead. A mismatch. On a mismatch, the cat stares at the screen longer.

Those extra seconds mean that on hearing Snowball, it was already expecting Snowball's face. Cats living in cat cafés didn't do this. Cafés have lots of cats and a stream of visitors, so names get mixed up. At home it's different: one name follows the same cat every day.

A cat listening to us is a bit like you waiting for your number at a clinic. Most of the announcements, you're not even listening to. But the moment your number is called, your head snaps up.

A cat's name is its number. Hear the name, and the ears swivel toward you. How does it learn that number? Its name usually comes right before dinner, a pet, or playtime. When a sound keeps arriving with something good, the cat links the two.

Scientists call this associative learning tying a sound to what happens next. Treats, dinner: that's how those words stick too. When you hear your number, you get up and go. When a cat hears its name, it often just turns an ear and stays put. It can also tell who is calling. To its owner's voice, it reacts more.

So does it understand a whole sentence? There's no evidence it does. Say "don't scratch the sofa today," and it hears a string of sounds, catching one or two familiar words at most. But one thing it hears very clearly: your tone of voice.

When the owner uses that high, sing-song cat voice, the cat turns its ears and stops grooming. The same person in a normal grown-up voice? Not much interest. A stranger? It doesn't care which voice. These studies tested only a few cats, so the picture is still being filled in.

So the secrets you whisper to your cat: it doesn't get the words, but it knows they're meant for it. Which word makes your cat come running fastest?