There’s only one freshwater hermit crab, Clibanarius fonticola, which is native to Vanuatu. Hermit crabs are omnivorous scavengers, eating microscopic mussels and clams, bits of dead animals ...
A type of zooplankton, Daphnia pulex (a.k.a. the water flea) is a microscopic crustacean whose unique ... to the naked eye but plays a vital role in freshwater ecosystems around the world as ...