All animals, including humans, have two eyes located on their heads, right? Wrong. Go below the ocean surface and you will find that Scallops have dozens of blue eyes bordering their shells, Hammerhead Sharks sport eyes at the end of their curious heads giving them 360 degree vision and seastars have light-sensing organs at the end of each of their arms. Jumping Spiders are graced with four eyes but even more impressive - a housefly will be looking at you with up to 6,000 ocelli which act as individual tiny eyes!