TIL That snail shells can encase and kill parasitic worms. When nematodes creep inside a snail’s shell, cells on the shell’s inner layer adhere to the nematodes, swarm over their bodies, then encase them in the shell.

Read more: https://www.realclearscience.com/quick_and_clear_science/2017/07/10/snail_shells_engulf_encase_and_kill_parasitic_worms.html

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