[skankhunt]

Leucochloridium paradoxum, common name green-banded broodsac, is a parasitic flatworm (or "helminth") that uses gastropods as an intermediate host. It is typically found in Succinea that live in Europe and North America where it infects the host’s eyes making them appear as caterpillars that other birds prey on. Various birds consume these infected gastropods, becoming the definitive host for L. paradoxum to mature and release eggs in the rectum that are later found in the feces of the bird host.

[Sharon]

Nature can be very weird but very clever

[Kelseecat65]

Yes, it can!!

[Faline]

[kellyhound]

weird but cool

[Photoplay]

Ewww. That pulsating eye gave me the heebie jeebies