Sea anemones are predatory animals that anchor to the coral and sway in the ocean current as they search for food. Their tentacles can resemble the long leaves of a plant as they grasp at fish and small animals that serve as food for the sea anemone. In some species, the tentacles are much shorter. The tentacles contain stinging cells that are equipped with an external sensory hair. When triggered, the cells fire a harpoon-like barb and inject a toxin. This can be used as defense or for hunting. Small fish and other marine animals become paralyzed and are then devoured by the sea anemone. But there are fish that are immune to the sting of the sea anemone. Clown fish and anemone are well known exceptions, with their mucous that prevents the activation of the sea anemone's stingers. Clown fish are the best known, but not the only fish with the ability to produce this mucous. There are a few other species that are referred to as anemone fish. These two are the Fiji anemone fish. They live among the deadly anemones, taking cover at the slightest sign of a threat. Predators don't dare follow the anemone fish into the tentacles and the small fish are safe within. These fish continuously rub up against the tentacles, even when predators are not near. The contact with the anemone helps them accumulate mucous which combines with their own mucous to produce the substance that masks their presence from the stinging cells. The anemone benefits from the fish in a perfect example of a symbiotic relationship. The anemone fish becomes aggressive and chases other fish away that might nibble at the tentacles of the anemone. The fish excrement provides the anemone with nutrients. The entire arrangement is a win-win situation for both animals. Anemone fish are loyal to an anemone, remaining in the same location and protecting their host. Often found in groups, there will be one breeding male and one breeding female. If the female dies, the male will turn into a female and the largest non-breeding male will assume the role of being the male breeder. Anemone fish feed primarily on zooplankton that drift past on the ocean currents. As expected, these fish were found on the reef surrounding an island in the Republic of Fiji.

Mantis shrimp are believed to have the most sophisticated and complex eyes in the animal kingdom. They have the most complex visual system ever discovered. Humans have three photoreceptors that allow us to see red, green, and blue light. In comparison, the mantis shrimp has an astonishing 16 photoreceptors. They are able to see visible light, UV light, and polarized light. They are even capable of detecting circularly polarized light, being the only animal on earth that can do this. Mantis shrimp are capable of depth perception using only one eye, a task that requires two eyes for any other animal to accomplish. The eyes of the mantis shrimp are made up of rows of specialized cells, with each row having unique structure and capabilities. The mantis shrimp is constantly moving its eyes and scanning its surroundings to obtain an accurate picture of what is around them. This movement also gives them a very large field of view. The mantis shrimp is famous for its ability to strike with incredible speed and power. Its strike is the fastest of any marine creature and it happens so fast that it actually cavitates the water around it, creating a second impact that is powerful enough to stun or kill its prey if it misses with the actual strike. But, as astonishing as this is, the visual powers of the mantis shrimp are even more remarkable. Despite the knowledge that these little animals have such amazing visual superpowers, there is surprisingly little research on the matter. This is yet another example of how little we understand the world around us.

Moray eels are among the ocean's most misunderstood creatures. Up to 2m (6 feet) long, with large heads and fearsome jaws, these animals are widely feared. They are known to have a second jaw, located in the throat, referred to as a pharyngeal jaw. These jaws move forward to seize prey and pull it deep into the moray eel's throat. Moray eels are the only animals known to use pharyngeal jaws to actively capture and restrain prey. Despite their reputations as ferocious beasts, moray eels rarely bite humans, and in the rare cases where it has happened, the incidents have been related to irresponsible feeding and misunderstanding. Moray eels have poor eyesight and can mistake a hand for food if they are being fed by scuba divers. Hollywood movies that depict these animals as aggressive contribute to the misconceptions. Although the eels are capable of inflicting serious wounds with their large teeth, they demonstrate no desire to bite people. Eels are more intelligent than they are given credit for. They have been found to engage in cooperative hunting with groupers. Groupers will approach the eel and perform a head shaking behaviour, communicating to the eel that they are ready to hunt. The eels can work their heads into crevices where fish hide, flushing out the prey and giving the grouper the opportunity to catch them. For scuba divers who understand these beautiful creatures, they are a welcome sight. This eel was seen swimming in the open. It was as curious about the scuba divers as they were about it.