A Few Facts about Seahorses
One of the fascinating things about seahorses is the way they reproduce: During mating season the male dances a courting dance around the female. He swells a pouch located below his belly. He dances around her for hours pompously, with his swollen belly, until she succumbs to his charms. Then the most surprising thing happens: During mating, the female lays her eggs into the male's pouch and that's where they're fertilized. The male is pregnant!!!
The seahorse is a fish who doesn't like to swim. His fins are not well-developed and even when he's just moving from place to place, he does so in an awkward yet charming way.
The seahorse's natural habitat is a region with marine vegetation. This vegetation covers much of the area around coral reefs. Thus they camouflage themselves by turning the color of the vegetation where they live their lives.

A Few Facts about Cleaner Fish
Many fish carry parasites on their bodies among their scales. The Cleaner Fish keeps them clean, getting its nutrition from the parasites which it removes from other fish at special clean-up spots. The fish who come to the clean-up spots give the Cleaner Fish free reign - so the cleaner fish can even clean inside the mouth and around the teeth and gills of the bigger fish. One fish who is almost identical to the Cleaner Fish is the Imitator, mimicking not only the appearance but also the movements of the Cleaner Fish. The imitator fools the other fish on the reef who arrive to get cleaned and are bitten by the Imitator instead.