Blue-ringed octopus is one of the most potent venoms in the sea, whose salivary glands produce tetrodotoxin, which rapidly causes paralysis with fatal consequences

Cone snail hunt by sending out a hollow, venom- filled 'harpoon' to spear passing fish which they then pull into the mouths

Box Jellyfish have tentacles covered in biological booby traps loaded with poison

Beak-shaped snake delivers its venom through a small pair of fangs, which can lead to paralysis

Lionfish are venomous as heir spines, tentacles, and fins contain venom glands