Arctic Secrets

Once considered barren wastelands, scientists now realise the importance of bogs such as the enormous Hudson Bay lowlands in protecting our environment. (S2, ep 1)

The vast Yukon is famous for its winding river. In it, thousands of salmon make the perilous trip to reach their spawning beds, dodging predators along the way. (S2, ep 2) Also in UHD.

Winter has arrived at the lower Western shore of Hudson Bay, where polar bears reside. However, the ice that normally forms there is nowhere to be seen. (S2, ep 3)