Why and When Do Snakes Bite? As is commonly known, snakes bite for two main reasons: to hunt and to defend. When snakes are on the offensive, they use their venom to immobilize and kill their prey.

Snake bites can happen in the blink of an eye. Snakes are quick and agile, which makes their bites especially frightening. This video from BBC Earth Kids shows a bite happening in slow motion. This ...