Kovacs K. M., Citta J., Brown T., Dietz R., Ferguson S., Harwood L., Houde M., Lea E. V., Quakenbush L., Riget F., Rosing-Asvid A., Smith T., Svetochev V., Svetocheva O., and Lydersen C. “Variation in Body Size of Ringed Seals (<em>Pusa Hispida hispida</em&gt;) across the Circumpolar Arctic: Evidence of Morphs, Ecotypes or Simply Extreme Plasticity?”. Polar Research, vol. 40, Sept. 2021, doi:10.33265/polar.v40.5753.