Gory, freaky, cool: Marine snail venom could improve insulin for diabetic patients
(PHYSorg.com Chemistry)

Although moderately mobile, marine cone snails have perfected several strategies to capture prey. Some fish-hunting species release venom into the surrounding water. Within the plume of toxic venom, the fish succumbs to fast-acting insulin that renders it immobile. As the fish flounders, the snail emerges from its shell to swallow the pacified victim whole.