The sea pigs are marine animals that inhabit the deep sea floor. Some other examples of deep sea marine life include Sea squirt, sea stars, sea slugs, corals, clams, sponges and sea urchins. The Sea pigs may look like slugs but their body wall skeleton is clearly visible as spiny C shaped rods and are clear cucumbers measuring 2-4 inches in length. They have tentacles and large tube feet. The tube feet may appear like two antennas, while the other tube feet are arranged in a row around the rim at the bottom. Sea pigs thrive best on the abyssal plain of the ocean floor and behave like slugs do above sea level. The sea cucumbers feed on deep ocean mud and thrive on the organic material present there. The sea pigs feed by using their tentacles to push the food into their mouth. They tread deep sea waters using their tube feet. Other sea organisms present here are starfish, sea urchins, clams and other members of the echinodermata family. The sea pigs feed and reproduce in the depths of the ocean and form the majority of deep sea marine population. The sea pigs are not considered as a threat to humans and they are not an endangered species.