“–71°C in Yakutia | A Reindeer Mother’s Last Hope”

National Geographic on Instagram: "Known for their iconic tusks, which may help them sense changes in their icy environment, narwhals navigate the Arctic waters as mixed pods of males, females, and juveniles. This pod was encountered by Martin Gregus Jr. (@mywildlive), and while barely visible from the water's surface, a bird's-eye view reveals the full extent of their movements and behaviors."