Animal Guide: Cuttlefish, Nature, PBS.org, A fish that controls its color? Read other interesting facts about the cuttlefish here.

Black Reef Shark, Enchanted Learning, General information on the shark for younger students.

Blue Ring Octopus, Enchanted Learning, Labeled illustration and information for younger students,

Blue streak wrasses, By Lisa Evans, Animal Diversity Web, University of Michigan Museum of Zoology, Visit the website for photos (click for enlargement) and to learn about its habitat, lifespa

Blue-ringed octopus Wikipedia.org The blue-ringed octopuses (genus Hapalochlaena) are three (or perhaps four) octopus species that live in tide pools in the Pacific Ocean, from Japan to Australi

Caribbean spiny lobster, By Nadine Seudeal, Animal Diversity Web, University of Michigan Museum of Zoology, Visit the website to learn about its habitat, lifespan, behavior, food habits, econo

Coral Wikipedia.org Corals are marine organisms in class Anthozoa of phylum Cnidaria typically living in compact colonies of many identical individual "polyps". The group includes the important

Coral, Enchanted Learning, Labeled illustrations and information for younger students.

Coral: Animal, Vegetable, or Mineral?, Ocean World, Texas A&M University, Do you know the answer to that question? Discover the world of coral when you visit this site. Use the menu on the left

Crown-of-Thorns Starfish, By Microdocs, YouTube.com, Video length: 02:39.

Cuttlefish Males Fool Rivals by Imitating Opposite Sex, January 27, 2016, PBS.org, Video length: 02:05.

Damselfish HackingFamily.com Learn all about damselfish, one of many plant eaters on coral reefs.

Hawaiian monk seal, By Dustin Neubauer, Animal Diversity Web, University of Michigan Museum of Zoology, Visit the website for photos (click for enlargement) and to learn about its habitat, lif

Hawksbill Turtle, SeeTurles.org, Very informative page; has interesting tidbits and information on its distribution and threats.

Hippocampus (genus) Seahorses Wikipedia.org Seahorses eat small shrimp, tiny fish and plankton. Visit the website for the rest of the article and pictures.

Manta Ray Facts, Montaray World, "If you observe the feeding habits of the Manta Ray you will quickly see that they are filter eaters. This process allows them to take in everything in the water a

NOAA divers capture invasive lionfish in the Virgin Islands National Park, Eureka Alert, "Divers identified and killed a 15 cm long lionfish in Fish Bay along the southern coast of St. John, makin

NOVA Online | Kingdom of the Seahorse, NOVA, PBS.org, This is the companion website NOVA's Kingdom of the Seahorse program. Numerous photos and a lot of information.

Nudibranch Facts, By Jennifer Kennedy, ThoughtCo., Facts and images; click on an image for a larger version.

Nurse shark Wikipedia.org Distribution and Habitat The nurse shark is a common inshore bottom-dwelling shark, found in tropical and subtropical waters on the continental and insular shelves. It

Pygmy Seahorses: The Ocean's Prettiest Camouflage Artists, By Contributing Writer, Scribol.com, "Beautiful, tiny and brightly colored, pygmy seahorses are expert camouflage artists and the smalle

Redthroated rainbowfish, By Joshua Lehto-Jacobs, Animal Diversity Web, University of Michigan Museum of Zoology, Visit the website for photos (click for enlargement) and to learn about its hab

Sea Horse Printout, EnchantedLearning.com, Labeled illustration and information for younger students.

Seahorse Facts, By Jennifer Kennedy, About.com Guide, Here are 10 facts about seahorses you probably didn't know; click on an image for larger version.

Starfish on coral algae, by Jessana P, Uploaded on July 8, 2009, Flickr.com, Very colorful close-up photo.

Stony Corals (Hard Corals), By Jennifer Kennedy, About.com Guide, Information on their characteristics, classification, where they live, what they eat, and more. Click on an image for a larger

Whale shark, By Paulina Calleros and Jessica Vazquez, Animal Diversity Web, University of Michigan Museum of Zoology, Visit the website for photos (click for enlargement) and to learn about it