But poisons and venoms aren't all bad.

Then, the little remipede closes in,dissolving away the exoskeleton of its prey and sucking out the juices.But poisons and venoms aren't always all bad.For thousands of years, humans have looked for ways to harness the power of these toxic compounds for good. Today, we have all sorts of medicines that come from toxins.The poison from cone snails is used as a painkiller.Many poisonous plants have been used to treat everything from malaria to irregular heartbeats.And scorpion venom might one day be used to treat heart disease.So, what should you do if something bites or poisons you?