To keep things tidy, nerve cells (red) nibble away at themselves via Pac-Man–like structures (green and yellow).
Andrey Tsvetkov, Steven Finkbeiner, UCSF
There’s a little Hannibal Lecter in all of us.
But while the famous cannibal dined on chunks of his enemies and friends, most people stick to gnawing on themselves at a microscopic level.