Myth #2: Cats need milk.
The reality: While many of us can conjure up a cute image of a cat lapping a bowl of milk, resist the temptation to offer this in real life. Cats and dogs don't have the ability to appropriately break down the lactose in dairy, and consuming it can lead to diarrhea, vomiting, and other issues. To make sure your cat is hydrated properly, invest in a cat water fountain; the animals are naturally drawn to moving water. (That's why they're often found lapping up water beneath a leaky faucet.)