22. Bowhead Whale
The bowhead whale is a remarkable Arctic giant, known for its massive skull, which it uses to break through thick sea ice. This adaptation is crucial for survival in the frigid Arctic environment, where accessing air is vital. Bowhead whales have the longest lifespan of any mammal, living over 200 years, and are characterized by their large, robust bodies and distinctive bow-shaped head. They primarily feed on zooplankton, using baleen plates to filter their food from the water. Despite historical whaling impacts, bowhead populations are recovering, yet they remain vulnerable to climate change and threats to their icy habitats.