Did you know there are more than 50,000 species of spiders found in the world? For most people this means 50,000 more reasons for them to be afraid. Granted, some species are deadly and look terrifying, but others are simply fascinating. Jumping spiders are among my favorites. They have some of the best vision among arthropods and use it in courtship, hunting, and navigation. Also they are super-smart and most species are capable of very agile jumps, notably when hunting, but sometimes in response to sudden threats. All jumping spiders have four pairs of eyes and amazing ornate colors.