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.

But harp seals and hooded seals spend time on the Island ... Because of those differences, it's hard to tell if a seal pup is still nursing or if it's been abandoned, Wimmer said. It can even be ...

Grey seals and harbour seals are the most common species on P.E.I., she said. But harp seals and hooded seals spend time on the Island, too. Even though its coat is white, this grey seal pup will soon ...

We teamed up with the makers of BBC One's Frozen Planet II for a Live Lesson exploring the coldest places on Earth and the impact of climate change on the icy habitat of harp seal pups.