Social nonhuman animals are powerful models for studying underlying factors related to
lifelong health outcomes following early life adversities (ELAs). ELAs can be linked to …

According to behavioural ecology theory, sociality evolves when the net benefits of close
association with conspecifics exceed the costs. The nature and relative magnitude of the …

Following Darwin's original insights regarding sexual selection, studies of intrasexual
competition have mainly focused on male competition for mates; by contrast, female …

We analysed 38 years of data on 46 lion prides in the Serengeti National Park, Tanzania,
and found that territorial competition directly affected critical components of female fitness …

The domestic cat is the only member of the Felidae to form social relationships with humans,
and also, the only small felid to form intraspecific social groups when free ranging. The latter …

In this article we present an evolutionary theory of altruism-Selective Investment Theory
(SIT). The essence of SIT is that human social bonds evolved as overarching, emotion …

Sport hunting has provided important economic incentives for conserving large predators
since the early 1970's, but wildlife managers also face substantial pressure to reduce …

In most species, sport hunting of male trophy animals can only reduce overall population
size when the rate of removal of males is so high that females can no longer be …

From the popularity of authoritarian political leaders to the under-representation of women in
boardrooms, leadership is an important theme in current human social affairs. Leadership is …

Although competition between females is one of the cornerstones of the theory of natural
selection, most studies of reproductive competition have focussed principally on mating …