A George Mason University (GMU) biologist proposed an alternate theory of how the common cuckoo bird mimics other birds’ egg colorings at a biology department seminar Jan. 15. Hanley said cuckoos are ...

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 ...

Females often choose their mates, instead of mating at random, even when a father contributes nothing but genes to his offspring. Costly female preferences for males with exaggerated traits that ...

When scientists attempt to understand how climate change might reshape our environment, they must grapple with the seemingly endless complexity of interacting systems. For those considering the likely ...

Stay and fight, or flee? These are usually the alternatives facing a victim when it is attacked by an enemy. Two researchers from Lund University have now collected and discussed various examples from ...

AbstractThe evolution of reproductive isolation among populations is often the result of selective forces. Among those, parasites exert strong selection on host populations and can thus also ...