In a tank dedicated to the indo-pacific sea you can see the fascinating Horseshoe crab: a chelicerato arthropod, the only one who represents the Limulus genus.
Despite its common name "Horseshoe crab" - given by the particular shape of the body - it is actually more closely to spiders than with real crabs.
The origin dates back about 400 milion years ago, for that reason the Limulus is considered a prehistoric animal.
The "Horseshoe crab" mainly lives on the east coast of North America, Mexico and Yucatan.
It feeds mainly on small crustaceans, snails and small fishes.