To survive, this isolated population of only 2,000 whales needs to be smart about mates. Breakthroughs, discoveries, and DIY tips sent six days a week. Among marine mammals, beluga whales () are particularly difficult to study in their icy habitat. To better understand and protect this endangered species, scientists must piece together bits of their lives from fragments, including one of the most important behaviors of any species--mating. One small population of beluga whales living in southwest Alaska's Bristol Bay appears to have a surprising strategy.

Rare drone footage has captured up to 800 whales frolicking and socialising in the endangered channel where they come to give birth. The beautiful belugas were filmed as they sought out the safety of Lancaster Sound which lies off the coast of Devon Island, in northern Canada. The mammals majestically swirl through estuaries to their temporary home, playing and socialising in groups with a vocal chirp that earned them the nickname'canaries of the sea'. They were filmed by Sea Legacy, who are campaigning to make Lancaster Sound into a marine protected area to save the surrounding, wondrous wildlife and environment. If successful it will prevent oil exploration, additional tanker traffic and development of the area.