North Atlantic sea ice in areas where harp seals breed has declined as much as 6 percent every 10 years since 1979, according to scientists from Duke University and the International Fund for Animal Welfare. As a result, in low-ice years, entire populations of brand-new seal pups die, reports Yale e360.

Reader support makes our work possible. Donate today to keep our site free. All donations TRIPLED!

According to Canada’s Fisheries and Oceans department, as many as 80 percent of seal pups born in 2011 may have died because of a lack of sea ice.

Seal, moping, by Peter Hedger