Owl Limpet (IMAGE) Rice University Caption The genomes of the freshwater leech Helobdella robusta (pictured), the owl limpet and an ocean-dwelling worm are among the first sequenced genomes from a vast, understudied swath of the animal kingdom known as lophotrochozoans, which includes as many as one-quarter of Earth's marine species. Credit Ajna S. Rivera/UC-Berkeley Usage Restrictions Must credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.