Cryptic female choice (CFC) represents postmating intersexual selection arising from female-
driven mechanisms at or after mating that bias sperm use and impact male paternity share …

The consequences of polyandry for female fitness are controversial. Sexual conflict studies
and a meta‐analysis of mating rates in insects suggest that there is a longevity cost when …

Animal ecologists commonly assume that the reduced fitness that often afflicts inbred
offspring will inevitably cause selection for inbreeding avoidance. Although early empirical …

The understanding of natural and sexual selection requires both field and laboratory studies
to exploit the advantages and avoid the disadvantages of each approach. However, studies …

In the female insect, the spermatheca is an ectodermal organ responsible for receiving,
maintaining, and releasing sperm to fertilize eggs. The number and morphology of …

Animals are usually expected to avoid mating with relatives (kin avoidance) as incestuous
mating can lead to the expression of inbreeding depression. Yet, theoretical models predict …

Insects display a staggering diversity of mating and social behaviours. Studying these
systems provides insights into a wide range of evolutionary and behavioural questions, such …

Polyandry, by elevating sexual conflict and selecting for reduced male care relative to
monandry, may exacerbate the cost of sex and thereby seriously impact population fitness …

The widespread phenomenon of polyandry (mating by females with multiple males) is an
evolutionary puzzle, because females can sustain costs from promiscuity, whereas full …

Animals exhibit behavioural patterns characterized by responses to information received
from internal and external stimuli. The ultimate response or decision is based on physical …