We've all learned about the five senses of the human body: sight, hearing, touch, smell, and taste. And that's it, right? But think about it - your body does so much more than these five things. You can sense temperature, for example. You have an innate sense of your own body and how it exists in a space. In fact we have so many senses that the number is closer to 40 than to five. Here's what we know about them.