Brain worm!!

They told her it was a tumor. It turns out there was something living... in her brain!

crazy parasite

Once C. exigua replaces the tongue, some feed on the host's blood and many others feed on fish mucus. They do not eat scraps of the fish's food. This is the only known case of a parasite functionally replacing a host organ.

Bald Rat

no spiral

These are concentric circles, not a spiral


Optical Illusion

Squares A and B are the same shade of gray.

Created by this guy. via boingboing

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If a 6600 used paper tape instead of core memory, it would use up tape
at about 30 miles/second.
-- Grishman, Assembly Language Programming