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Ottoia

The Ottoia is one of the largest and most abundant worms of the Cambrian. These dental spines on the trunk allows her to capture her prey. The ottoia dug tunnels in the vases in which she lived and from there she can extend her trunk to seize her prey (usually other Cambrian molluscs).

In addition to being an ambush predator, this verse does not hesitate to devour members of its own species.

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