Cone snails, part of the Conidae family, are a type of predatory gastropod mollusk that live inside spiral shells. They range in size, reaching up to around 11 inches in length, but their power ...

The shell isn't dangerous, it's what's inside the shell. Cone snail venom can cause paralysis, respiratory failure and cardiovascular collapse. A sting can be fatal.

Inside a snail emergency room. Around 1 million species of plants and animals are at risk of extinction around the planet, ... One snail has a shell like a miniature cinnamon roll.