Ecology Letters (2011) 14: 948–958 Abstract Many generalist populations are composed of
specialised individuals, whose niches are small subsets of the population niche. This …

Across the animal kingdom, we see remarkable variation in brain size. This variation has
even increased over evolutionary time. Traditionally, studies aiming to explain brain size …

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 …

Dietary diversity often varies inversely with prey resource abundance. This pattern, although
typically measured at the population level, is usually assumed to also characterize the …

Theoreticians predict that animal 'personality'traits may be maladaptive if fixed throughout
different contexts, so the present study aimed to test whether these traits are fixed or plastic …

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 …

Animal tool use is of inherent interest given its relationship to intelligence, innovation and
cultural behaviour. Here we investigate whether Shark Bay bottlenose dolphins that use …

Several populations of odontocete cetaceans, including at least 19 species, have modified
their behavior and adapted to foraging in association with trawlers. We review information …

Innovative foraging behaviour has been observed in many species, but little is known about
how novel behaviour emerges or why individuals differ in their propensity to innovate. Here …

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 …