Some iPhone 7 and iPhone 7 Plus users have reported their new smartphones have had quite the hissy fit — making a noise that sounds like a snake hissing in the grass. Stephen Hackett, who blogs at 512 ...

Cats show their feelings with sounds. One very common sound they make is a hiss. A cat hisses to warn others in a threatening situation. The cat is telling the threat to stay away. Cats make this hiss ...