A ribbon worm spits out it's proboscis, uses to catch prey. it's held in a sac above their gut and it has neurotoxin that can actually paralyze or slow down it's prey :
If You Think This Ribbon Worm Is Creepy, You Should See Its Cousins
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False Bay Species
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Ribbon worms (Nemertea) on the Shores of Singapore
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what : r/Unexpected
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