Medicine & TechnologyA new study analyzed more than 1,400 protein-coding genes of fleas - addressing some of the persisting questions in insect evolution about the flea.
Leptodora is a large relative of water fleas with one enormous eye that hides from predatory fish by day through moving to the bottom of the lake and only goes up at night to feed on other zooplankton unknowingly bringing up toxic mercury to the water surface.