Infecting a Snail: Life Cycle of the Grossest Parasite

From barnacles that hijack crabs to a protozoan that makes rodents cozy up to cats, parasites do a lot more than make you puke. But for sheer gross-out glory, it’s hard to beat Leucochloridium paradoxum. These flatworms live in birds’ rectums, and they give garden snails a glimpse of hell. 1/ A grazing snail eats […]