Behaviour is what you do
A major challenge in biology is to understand the causes and consequences of differences among individuals in their phenotype, includying their behaviour, morphology and physiology. It is becoming clear that past and current environmental influences can cause markedly differences in phenotypic traits. I am a behavioural ecologist who uses the three-spined stickleback (Gasterosteus aculeatus) as a model system to understand how plasticity drives phenotypic change in response to variation in the social and ecological environment.