11. The Blue Dragon: This is the Glaucus Atlanticus, a crazy species of blue sea slug. The Blue Dragon is able to float on the water's surface because of a gas-filled sac in its stomach. This species can be found in the warm ocean waters, so be careful not to step on these beauties.
Little Fish that Can Climb Your Urethra While Urinating : Candiru also known as toothpick fish, is a parasitic freshwater catfish native to the Amazon River. Although some candiru species have been known to grow to a size of 16 inches (~41 cm) in length, others are considerably smaller. These smaller species are known for an alleged tendency to invade and parasitize the human urethra.