These parasites are more common than many owners realize, but luckily, nearly all are preventable.

A parasite that lives in human blood has been pulling off a strange trick for decades. It covers itself in a dense coat of ...

As dozens of frog species have declined across Central America, scientists have witnessed a remarkable chain of events: With fewer tadpoles to eat mosquito larvae, rates of mosquito-borne malaria in ...

It is small, inconspicuous, yet increasingly present: The meadow tick continues to spread in Germany–and remains active even ...