LSHTM hosts the Evolutionary Demography Group, the first of its kind in the UK. This interdisciplinary group applies the theoretical framework of evolutionary biology to human demographic behaviour. It combines both social and natural science to explore questions of demographic interest, such as why do people have the number of children that they do, drawing on anthropology and psychology, as well as demography and evolutionary biology. Under the direction of Dr. Rebecca Sear, the group holds weekly lab meetings and monthly journal club sessions.