Sympatric brown trout populations that are largely genetically divergent but appears morphologically similar has been detected in the Lakes Trollsvattnen, one of the sites monitored in the Lakes Bävervattnen long term study.

Welcome to the Department of Zoology

The Department of Zoology has a long history, but is also very much with its time. It was founded in 1880, as the first at Stockholms University, and is continously changing to make room for new exciting research fields. The divisions for zoological ecology, ethology, morphology and population genetics are located in Arrheniuslaboratorierna, while systematics och evolution is mainly found at the Swedish Museum of Natural History. We also have a well-equipped research station a few miles south of Stockholm


Our current research is focused on animal evolution, ecology and behaviour, but within a broad spectrum from nervous system to ecosystem - on model organism from fruit flies and butterflies to fishes, birds and arctic foxes. Not even human is excluded - we take part in the interdisciplinary Centre for the study of Cultural Evolution. As part of the research programme Ekoklim we study ecological effects of the climate change. Our research is also theoretical within Stockholm Univerisity profile area biological modelling.


Stora genetiska skillnader mellan älg i norra och södra Sverige

Den svenska älgstammen är uppdelad i en nordlig och en sydlig population, visar en ny genetisk studie från Zoologiska institutionen. Studien visar också spår av tidigare hård jakt som lett till förluster av genetisk variation.

Single gene controls fish brain size and intelligence

A single gene called Angiopoietin-1 drives brain size and intelligence in fish according to a new study by researchers at Stockholm University, UCL and University of Helsinki.