Very large sea-going animal native to New Poseidon.
Approximately 100 meters in length and 20 meters diameter, the leviathan fills the same ecological niche on its world as whales do on Earth. The body consists of a huge tube of flesh open at both ends. Muscle contractions force water through the creature and propel it through the water. Thousands of small tendrils on the inner wall of the body strain the water for micro-organisms for food. Half a dozen relatively small, paddle-like fins circle the outside of the body in two bands of three. Each band is offset from the other. These fins are used to help the creature steer. A dozen eyes are dotted around the body, but the creature relies primarily on sonar to sense the world around it. Leviathans travel in small family groups of 3-7 animals. When a group becomes too large, some members will split off and form a new grouping or two large groups may mix and then split into 2-3 new families with members of the two starter groups mixed together.