If you have never heard the unearthly noise of Canada lynxes in the forest, check out this extraordinary YouTube clip. It sounds like a pair of domestic cats having a disagreement in a backyard—only ...

If you live with more than one cat, you’ve probably seen them swat, hiss, or even tumble around the room in what looks like a brawl. Some back-and-forth is normal, but if your cats seem to fight often ...