I study the evolution of psychological diversity. My background is in theoretical biology. For a while I hacked it as a drosophilist in Kyoto and trained in evolutionary genetics and psychology at Edinburgh. Now I’m tackling direct and indirect fitness effects in birds at Sheffield. In other contexts I am a quantitative geneticist studying the soul; a psychologist to monkeys and chimpanzees; a primatologist investigating humans; a hacker analyzing data. And I am a distracted generalist.

My research topics encompass personality in wild animals, parent–offspring resemblance, the quantitative and evolutionary genetics of behavior and life history, cooperative breeding, and well-being and health. I work with macaques, apes, long-tailed tits, and red deer.

Examining individual differences tidily intersects genetic and statistical methods, evolutionary biology, and the ongoing, generations-old speculation on our condition. My field might be called differential biology.

If you have a question, just ask.

If you fancy more, there’s always