The aptly named Ping-pong tree sponge (Chondrocladia lampadiglobus) is a carnivorous sponge. Those ping-pong ball looking things are covered in tiny spicules which the sponge uses to catch tiny crustaceans.
Gallery: In pictures: Sea angels and other amazing undersea creatures
The "sea angel", a swimming sea slug, is most beautiful of the deep sea animals he snapped -- not exactly a tough contest to be fair. Mostly transparent, the sea angel's internal organs appear to glow brightly in the image.
Russian fisherman shares his ungodly deep-sea discoveries
Strange Animals, Unusual Animals, Deep Sea Creatures, Weird Creatures, Water Animals, Animal Humor, Deep Water, Water Life, Ocean Life