The fourth is the american horseshoe crab (limulus polyphemus) which lives alongside the east coast of north america, with a very massive quantity going to the seashores of the delaware bay to mate every year.
These crabs might look prehistoric, however they do an essential job of supporting different animals round them: their eggs are a nourishing snack for migrating birds.
They are additionally good for fishermen as a result of they assist hold the sediment round coastlines wholesome.
The worldwide union for the conservation of nature (iucn) says, ‘the horseshoe crab is a important hyperlink to coastal biodiversity.
One of their ecological capabilities is to put thousands and thousands of eggs on seashores to feed shorebirds, fish and different wildlife.
Its massive exhausting shell serves as microhabitat for a lot of different species comparable to sponges, mud crabs, mussels and snails.