The frill shark has a large mouth with 25 rows of 300 sharp teeth, six pairs of fringed gill slits, and a long, eel-like body that can grow up to 6 feet long. It's referred to as a "living fossil" because it's a member of one of the oldest living shark species.
An image of a hydrothermal worm taken at 525 times magnification under a scanning electron microscope. No photoshopping. Hydrothermal worms are deep sea creatures, almost as small as bacteria, and are largely found near hydrothermal vents in the ocean.