There are about 40 kinds of cats out there – like me. There’s only one kind of human on Earth now. But there are more than a million kinds of insects. That’s just the insect species we know about.

Add Yahoo as a preferred source to see more of our stories on Google. Exploring anywhere on Earth, look closely and you’ll find insects. Check your backyard and you may see ants, beetles, crickets, ...

If you're reading this at home, you are currently surrounded by arthropods - invertebrates with exoskeletons and jointed legs. But just how many spiders, crustaceans and other creepy crawlies live in ...