A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
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Australian Graham Barker has been collecting his own belly button fluff every day since 1984 - keeping it in storage jars.
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The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
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If a vampire bat goes 2 days without drinking blood, they can die. However, well fed female bats will puke up blood and share it with other bats that they like in exchange for grooming.
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