Host–parasite interactions represent an intricate interplay between pathogenic organisms and their hosts, shaping evolutionary trajectories through reciprocal adaptations. This coevolutionary process ...

According to a new study, the first louse to take up residence on a mammalian host likely started out as a parasite of birds. That host-jumping event tens of millions of years ago began the long ...

A George Mason University (GMU) biologist proposed an alternate theory of how the common cuckoo bird mimics other birds’ egg ...

Two new studies show how climate influences behavior, communication, and genome evolution – driving adaptation in a long-running conflict The battle between ant hosts and their social parasites is ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Ancient reptilian ...

The battle between ant hosts and their social parasites is strongly influenced by climate. Temperature and humidity shape how the ants behave, communicate, and even evolve – while host and parasite ...

(CNN) — Ancient reptilian carnivores that resembled modern crocodiles were fearsome hunters, but their scaly armor and sharp teeth couldn’t protect them from parasites, scientists have discovered.