The microbes of the world are constantly in competition, and are said to be locked in an evolutionary arms race. Their battles often involve host species as well. One example is the relationship ...

Hairworms are parasites with a killing strategy so extreme it looks like mind control. After developing inside an insect host, the worm triggers behavioral changes that drive the victim toward water.

Crypt-keeper wasps are masters of manipulation. As researchers reported in 2017, the insect is one of the few parasites capable of altering the behavior of similarly insidious parasites—a practice ...

At Brazil's Butantan Institute, Ricardo Bassini-Silva identified mite larvae feeding on a millimeter-scale specimen in the museum's archive.

Against its will, it crawled up the stalk, marching toward its final destination. And then, from its skull burst forth the invader from within, releasing a bevy of its alien brood. This horror may ...