The Boy in the Submarine – Season 3, Episode 4: Bowhead Whales

Bowhead whales are baleen whales who live in the icy Arctic Ocean. Their bow-shaped heads have a hard plate on the top that lets them smash through the ice when they want to come up for air. They are incredibly long lived, with lifespans of around 300-400 years. They are also amazing singers with an incredible range of haunting vocalizations. They are an important filter feed that controls the population of krill and plankton in the Arctic.