Fruit-bearing plants often rely on fruit-munching animals — from birds and bats to bears and monkeys — to eat their fruits. Once these animals poop out the indigestible seeds, the plants have a chance to grow roots wherever the animal lays down a turd.

“Seeds can emerge from animals, so I can well imagine they could emerge out of a human,” Noller told Live Science. However, a seed doesn’t have to come from a dead person’s stomach; it could also grow out of any part of a dead person’s digestive tract, such as the small or large intestine, he said.