When they're stressed or ill, yes: - https://www.iflscience.com/stressed-out-snake-eats-itself-24388 https://www.iflscience.com/stressed-out-snake-eats-itself-

When they're stressed or ill, yes: - https://www.iflscience.com/stressed-out-snake-eats-itself-24388 https://www.iflscience.com/stressed-out-snake-eats-itself-24... - https://en.wikipedia.org/wiki/Ouroboros https://en.wikipedia.org/wiki/Ouroboros