Postcopulatory sexual selection (PCSS), comprised of sperm competition and cryptic female
choice, has emerged as a widespread evolutionary force among polyandrous animals …

Life-history strategies are diverse. While understanding this diversity is a fundamental aim of
evolutionary biology and biodemography, life-history data for some traits—in particular, age …

Sperm competition favors large, costly ejaculates, and theory predicts the evolution of
allocation strategies that enable males to plastically tailor ejaculate expenditure to sperm …

Ageing and sexual selection are intimately linked. There is by now compelling evidence
from studies performed across diverse organisms that males allocating resources to mating …

Lifespan-extending interventions are generally thought to result in reduced fecundity. The
generality of this principle and how it may extend to nutrition and metabolism is not …

Ejaculate proteins are key mediators of post-mating sexual selection and sexual conflict, as
they can influence both male fertilization success and female reproductive physiology …

Similar to humans and laboratory animals, reproductive aging is observed in wild species-
from small invertebrates to large mammals. Aging issues are also prevalent in rare and …

Male reproductive traits such as ejaculate size and quality, are expected to decline with
advancing age due to senescence. It is however unclear whether this expectation is upheld …

Older males often perform poorly under post-copulatory sexual selection. It is unclear,
however, whether reproductive senescence is because of male age itself or the …

Seminal fluid proteins (SFPs) exert potent effects on male and female fitness. Rapidly
evolving and molecularly diverse, they derive from multiple male secretory cells and tissues …