Sexual reproduction entails a number of costs, and yet the majority of eukaryotes engage in
sex, at least occasionally. In this article, I review early models to explain the evolution of sex …

Characteristics of hosts and parasites have a genetic basis, and thus can be shaped by
coevolution. Infections measured under laboratory conditions have shown that the …

Sexual reproduction is a fundamental aspect of life. It is defined by the occurrence of meiosis
and the fusion of two gametes of different sexes or mating types. Sex-determination …

Parasites and infectious diseases are everywhere and represent some of the most potent
forces shaping the natural world. They affect almost every aspect imaginable in the life of …

Most organisms reproduce through outcrossing, even though it comes with substantial costs.
The Red Queen hypothesis proposes that selection from coevolving pathogens facilitates …

It is a commonly held view that genetically homogenous host populations are more
vulnerable to infection than genetically diverse populations. The underlying idea, known as …

Red Queen dynamics, involving coevolutionary interactions between species, are
ubiquitous, shaping the evolution of diverse biological systems. To date, information on the …

For most, the mere mention of lice forces an immediate hand to the head and recollection of
childhood experiences with nits, medicated shampoos, and traumatic haircuts. But for a …

What are the causes of natural selection? Over 40 years ago, Van Valen proposed the Red
Queen hypothesis, which emphasized the primacy of biotic conflict over abiotic forces in …

Host and parasite evolution are closely intertwined, with selection for adaptations and
counter‐adaptations forming a coevolutionary feedback loop. Coevolutionary dynamics are …