Horrifying Hammerhead Worms

Diet

Bipalium worms are carnivores, known to prey on earthworms, slugs, insect larvae, and each other. The worms detect prey using chemoreceptors located under the head or ventral groove. A hammerhead worm tracks its prey, pushes it against a surface, and entangles it in slimy secretions. Once the prey is mostly immobilized, the worm extends is pharynx from its body and secretes digestive enzymes, then sucks liquefied tissue into its branched gut using cilia. When digestion is complete, the worm’s mouth also serves as its anus.

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