Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
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There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
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In Brazil, there's a species of cockroach that eats eyelashes, usually those of young children while they are asleep.
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Cockroaches can live for 9 days after their head has been cut off.
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Mosquitoes don't just bite you, they also pee on you.
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