There are approximately 2,270 sea animals covered under the U.S. Endangered Species Act. Get to know 20 of the most fascinating ones—plus how you can help them.

These animals belong to the phylum Echinodermata—other members of this group are starfish, sea urchins, and sea cucumbers. These aquatic animals have five or more flexible arms with a cup-shaped ...

Marine animals are getting bigger, ... Sea animals are 'growing larger' Friday, 20 February 2015 Anna Salleh ABC. ... Use these social-bookmarking links to share Sea animals are 'growing larger'.