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 ...

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.

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 ...