Harp seals and their pups are the subject of the second episode of Frozen Planet II, which is available now on iPlayer. One of the issues with climate change is that it’s really hard to see.

Harp seals live almost their entire lives in open water, coming up onto the ice for just 12 days each year to give birth. During this brief window, pups must make the most of every moment with ...

A rescued harp seal that seemed to be on the road to recovery suddenly took a sharp turn for the worse on Wednesday and had to be euthanized, the Marine Mammal Stranding Center said Thursday.