One particularly funny cat joke is, "What do you get if you cross a cat with a bottle of vinegar?" The answer is a sourpuss.
Cats are domestic carnivores that are usually kept as indoor pets but can also be kept outdoors. Cats can hear in higher frequencies than people. They can also see better in the dark but have low color vision abilities. Cats also have a better sense of smell than humans. This allows them to hunt small pests easily.
Cats communicate in various ways including mewing, growling, purring and hissing. They also use body language to communicate. Some communication signs of cats are arching their backs and hissing to appear larger and more threatening, and purring and rolling on their back when they feel comfortable.