The circular and oval shapes in the center of this image are a group of larvae (1) from a parasitic worm known as a schistosome, or blood fluke. They are shown developing within their host, a ...

Freshwater snails, also known as aquatic snails, are part of a huge range ... when the eggs they lay are excreted out, where ...

Larvae of C. lebetis mine in the stems of the submersed aquatic weed hydrilla, Hydrilla verticillata (L.f. Royle), causing sufficient damage to the apical meristem to preclude further growth. The ...