Extreme microscopic close-up of an insect bite on human skin.

Dragonflies the size of hawks once stalked Earth’s skies. Scientists thought they knew why they’d gone away – but a decades old theory may have just been disproven ...

Long before modern medicine, a tiny insect played a massive role in one of history’s deadliest outbreaks: the bubonic plague. Carried by fleas living on rats, the disease spread rapidly across ...