"When it comes to wild animals, everyone knows that there are certain things you just don’t do. It's clearly a bad idea to tease a tiger, pull a python's tail, or bother a black widow spider. But do you know how dangerous it can be to pet a platypus, collect a cone shell, or touch a tang fish? Some creatures have developed unusual ways of protecting themselves or catching prey, which can make them unexpectedly hazardous to your health. In this dynamic...