Within populations, individuals often show repeatable variation in behaviour, called 'animal
personality'. In the last few decades, numerous empirical studies have attempted to …

Coalitions and alliances are ubiquitous in humans and many other mammals, being part of
the fabric of complex social systems. Field biologists and ethologists have accumulated a …

In the songs and bubble feeding of humpback whales; in young killer whales learning to
knock a seal from an ice floe in the same way their mother does; and in the use of sea …

Bottlenose dolphins, Tursiops cf. aduncus, in Shark Bay, Western Australia exhibit the most
complex alliances known outside of humans. Advances in our understanding of these …

In most male mammals, fitness is strongly shaped by competitive access to mates, a non-
shareable resource. How, then, did selection favor the evolution of cooperative social …

Recent research on primates and other taxa has shown that the relationships individuals
form with members of the same sex affect their reproductive success. Evidence showing that …

In animal societies, control over resources and reproduction is often biased towards one
sex. Yet, the ecological and evolutionary underpinnings of male–female power asymmetries …

Abstract Knowledge about the ecology of bottlenose dolphins in the Southwestern Atlantic
Ocean is scarce. Increased by-catch rates over the last decade in coastal waters of southern …

Male alliances are an intriguing phenomenon in the context of reproduction since, in most
taxa, males compete over an indivisible resource, female fertilization. Adult male bottlenose …

Mating with multiple partners is common across species, and understanding how individual
males secure fertilization in the face of competition remains a fundamental goal of …