Copepods are one of the most abundant forms of life on Earth. They are dominant in the community of floating microscopic animals in the oceans, and also inhabit the microscopic spaces between sediment ...

Marteilia: A genus of protists that are parasites of bivalve mollusks, causing diseases that can lead to mass mortality. Copepods: Small crustaceans found in nearly every freshwater and saltwater ...

The parasitic copepod ommatokoita elongata attaches itself to the cornea of these sharks and actually feeds off the eye!