Intercropping is both a well-established and yet novel agricultural practice, depending on
one's perspective. Such perspectives are principally governed by geographic location and …

Aggression between unfamiliar pigs at mixing is a major animal welfare problem in
commercial farming. It has been studied since the 1970s and remains an important topic in …

Background Theoretical models of the development of childhood externalizing disorders
emphasize the role of parents. Empirical studies have not been able to identify specific …

The rate of adaptive evolution, the contribution of selection to genetic changes that increase
mean fitness, is determined by the additive genetic variance in individual relative fitness. To …

Grafting typically offers a shortcut to breed tree orchards throughout a multidimensional
space of traits. Despite an overwhelming spectrum of rootstock-mediated effects on scion …

Behavior is rapidly flexible and highly context-dependent, which poses obvious challenges
to researchers attempting to dissect its causes. However, over a century of unresolved …

The theory of evolution by natural selection is, perhaps, the crowning intellectual
achievement of the biological sciences. There is considerable debate, though, about which …

Although there are many examples of contemporary directional selection, evidence for
responses to selection that match predictions are often missing in quantitative genetic …

Humans are complex social beings. To understand human behaviour, an integrated
perspective is required-one which considers both what we regularly do (our personality …

Changing environmental conditions cause changes in the distributions of phenotypic traits in
natural populations. However, determining the mechanisms responsible for these changes …