Here’s your weekly reminder that the ocean is full of evil, terrible things that are all out to get you.

According to the Sun-Sentinel, a 23-year-old woman was bitten by a small nurse shark Monday in Boca Raton, Florida. The shark, which was about two feet long, refused to let go, EVEN AFTER IT DIED.

“The shark wouldn’t give up,” said Shlomo Jacob, of Boca Raton, among the beachgoers who looked on. “It was barely breathing but it wasn’t letting go of her arm, like it was stuck to her or something.”

It’s like a zombie shark. Persistent, even in death.

National Geographic says nurse sharks “have very strong jaws filled with thousands of tiny, serrated teeth” which should make you scream silently.

These sharks usually don’t attack humans, but they will bite defensively. Keep that in mind the next time your foot or arm brushes something smooth and fishy in the ocean.