You probably don't think of snails as dangerous whether they live on the ground or under the sea, but cone snails all carry venom that is injected with a harpoon-like tooth that punctures its prey before paralyzing it. Most small cone snails are no more dangerous than a bee, but the larger versions and some more venomous varieties can kill a human. There is still no antivenin for cone snails and the larger ones can even puncture through protective gloves. Symptoms of a bite include pain, swelling, numbness, vomiting, muscle paralysis, changes in vision and respiratory failure that can result in death.
robably don't think of snails as dangerous whether they live on the ground or under the sea, but cone snails all carry venom that is injected