sandhoppers

Sandhoppers are small, typically marine or terrestrial crustaceans belonging to the infraorder Hyperiidea. These amphipods are characterized by their strong hind legs which they use for leaping or "hopping" through sand or vegetation, hence their common name. While some species are found on beaches and in dune systems, many are pelagic, meaning they live in the open ocean. Pelagic sandhoppers often form symbiotic relationships with jellyfish and other gelatinous zooplankton, using them for shelter and transport. Their diet varies depending on the species and habitat, but often includes algae, detritus, or small invertebrates. Sandhoppers play an important role in their ecosystems, serving as a food source for birds and other coastal animals, and contributing to nutrient cycling. Their distinctive hopping behavior makes them a noticeable part of beach and marine environments. Reproduction typically involves males and females pairing up, with the female carrying the eggs in a brood pouch.