A. Löytynoja, J. Pohjoismäki, M. Valtonen, J. Laakkonen, W. Morita, M. Kunnasranta, R. Väinölä, M.T. Olsen, P. Auvinen & J. Jernvall.Deep origins, distinct adaptations, and species-level status indicated for a glacial relict seal.„Proceedings of the National Academy of Sciences”.122(25),s.e2503368122,2025. DOI: 10.1073/pnas.2503368122.(ang.).