Sexual selection is a field coloured by tension and contrasting views. One contested claim is
the causal link from the definition of the sexes (anisogamy) to divergent selection on the …

Personality disorders (PDs) are currently considered dysfunctions. However, personality
differences are older than humanity and are ubiquitous in nature, from insects to higher …

In contrast to sexual selection on traits that affect interactions between the sexes before
mating, little theoretical research has focused on the coevolution of postmating traits via …

The aesthetic preferences of potential mates have driven the evolution of a baffling diversity
of elaborate ornaments. Which fitness benefit—if any—choosers gain from expressing such …

Abstract Machine learning (ML) newly enables tests for higher inter-species diversity in
visible phenotype (disparity) among males versus females, predictions made from …

Finalist for the 2023 Pulitzer Prize in General Nonfiction and the 2023 PEN/EO Wilson
Literary Science Writing Award Winner of the Acoustical Society of America's 2023 Science …

Exaggerated ornaments often evolve due to the mating preferences of the opposite sex.
Genetic correlations between preferences and ornaments can lead both traits to elaborate …

Competition over resources is often decided via aggressive interactions, which may or may
not escalate to all-out fights. Weapons and body size play important roles in such …

Adaptive divergence and increased genetic differentiation among populations can lead to
reproductive isolation. In Lake Constance, Germany, a population of invasive three-spined …

This paper contributes to two debates: the debate about language evolution and the debate
about the foundations of human collaboration. While both cooperation and language may …