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illustration of single-cell parasites floating through the bloodstream alongside blood cells The parasite Toxoplasma gondii hides in up to half of humans, although it rarely causes symptoms. But when ...

When a parasite infects a host, it can manipulate host behavior, which may help spread the parasite to new hosts, or enable the parasite to complete its life cycle. Parasitic worms known as hairworms ...

Wolves are pack animals, living in family groups led by a matriarch and her mate. Some wolves stay with their pack their whole lives, helping hunt and raise pups like aunts and uncles as they mature, ...

Deep in the caves of Ireland, scientists have discovered a mind-altering parasite that takes control of spiders, forcing them to abandon their webs before ultimately meeting a gruesome end. This newly ...

Wolves are pack animals, living in family groups led by a matriarch and her mate. Some wolves stay with their pack their whole lives, helping hunt and raise pups like aunts and uncles as they mature, ...