Anna Olsson (I. A. S. Olsson) is Researcher and Group Leader at i3S-Institute for Research and Innovation in Health, University of Porto since 2004. She has a background in animal science and holds a PhD in ethology from the Swedish University of Agricultural Sciences. Her research focuses on behaviour and welfare of domestic (laboratory, farm and companion) animals and ethics of (animal) research and technology. She has established and coordinates training in laboratory animal science for researchers at i3S (FELASA accredited course). At the University of Porto, she has developed the ethics module for three PhD programs (PDN, GABBA, MCBiology), is co-founder of the interdisciplinary art-science module Biolaboratório and founder of the 1Health1Welfare Summer Research School. 

Anna Olsson chairs the institutional animal welfare and ethics review body since 2010. She leads the Portuguese 3R Knowledge Center (3RKC) since its establishment in 2023. She is Trustee for Universities Federation of Animal Welfare / Humane Slaughter Association (since 2016) and President of the Scientific Advisory Board for the Swiss 3Rs Competence Centre (since 2023; president since 2018). She is Editorial board member for the journal Laboratory Animals (since 2004) and academic editor for PLOS ONE (since 2016). She is the co-editor of two textbooks Animal ethics in animal research (Cambridge University Press) and Animal Welfare (CABI International).

She has coordinated / is coordinating 12 research projects. Three selected grants: 1. Neonatal vitality in laboratory mice: towards effective reduction of pup mortality (Fundação para a Ciência e a Tecnologia PTDC/CVT-CVT/3248/2021) 249.244euros (2021-23). 2. REMODEL Research models in infection, cancer and regeneration: replacement and translation (European Commission H2020-WIDESPREAD-2018-03/857491) 799 647 euros (2019-22); 3. Perinatal mortality in laboratory rodents (Fundação para a Ciência e a Tecnologia PTDC/CVT-WEL/1202/2014) 199.434 euros (2016-20). For more information about this research, see the project websites for VitalPup and REMODEL.