Cetaceans are fully aquatic predatory mammals that have successfully colonized virtually all
marine habitats. Their adaptation to these habitats, so radically different from those of their …

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 …

Research on sex biases in longevity in mammals often assumes that male investment in
competition results in a female survival advantage that is constant throughout life. We use 35 …

Behavioral phenotypic traits or “animal personalities” drive critical evolutionary processes
such as fitness, disease and information spread. Yet the stabilit y of behavioral traits …

Individuals of social species experience competitive costs and social benefits of group living.
Substantial flexibility in humans' social structure and the combination of different types of …

Intra-specific aggression is not frequently observed in wild cetaceans, including belugas.
One proxy, identified in past research, that indicates past aggressive behaviour is the …

Bottlenose dolphins (Tursiops spp.) live in complex societies with high fission-fusion
dynamics and exhibit a polygynandrous mating system in which both sexes mate with …

Odontocetes are characterized by slow life histories and extensive maternal care, where
offspring nurse for years in some species. Among some of the largest toothed whales, the …

Direct pathogen and parasite transmission is fundamentally driven by a population's contact
network structure and its demographic composition and is further modulated by pathogen …

Animals with fission–fusion dynamics live in fluid societies with varying party sizes. The
joining (fusion) and separation (fission) of these parties is considered a response to costs …