Beluga Whale (Delphinapterus leucas) lives in arctic and subarctic waters across Arctic Ocean and adjacent seas. Its conservation status is Least Concern.
Fascinating facts about the Beluga Whale
- Belugas can swivel their heads like owls because their seven neck vertebrae are not fused together. This flexibility lets them turn laterally without rotating the whole body, giving a wider field of view for spotting prey or predators. The ability to twist the head while the body stays steady is a rare trait among cetaceans.
- Around half of a beluga's weight is blubber, a thick layer that can reach 15 cm (5.9 in) and covers the whole body except the head. In Arctic waters this fat acts like a built-in furnace, insulating the animal in water as cold as 0 °C and serving as an energy reserve when food is scarce. By contrast, cetaceans from warmer seas carry only about 30 % body fat, showing how the beluga's massive blubber is a direct adaptation to polar life. This heavy insulation lets them stay active under ice.
- Belugas can live far longer than early studies suggested; a 2006 radiocarbon analysis showed they add one dentin layer per year, pushing the maximum age to 70-80 years. The oldest known individual reached 79 years, far exceeding the previously assumed 30-year ceiling.
- In winter belugas travel in small pods of about ten, but when the ice melts they swarm into estuaries in numbers that can reach the thousands. Such massive summer gatherings have been recorded in shallow coastal areas, where hundreds or even thousands of individuals mingle. The sheer scale of these gatherings highlights the species' social nature and its reliance on seasonal habitat shifts.
- A 2017 genome project revealed that belugas share 97.87 % of their DNA sequence with killer whales, despite belonging to different families. Sequencing produced a 2.327 Gbp assembly with 29,581 predicted genes, providing a detailed genetic blueprint for the species.
Sources
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At a glance
RangeArctic Ocean and adjacent seas
HabitatArctic and subarctic waters
DietFish and crustaceans
About the Beluga Whale
In the icy waters of the Arctic, the beluga whale glides effortlessly, its sleek, snow-white body undulating as it navigates the dark, mysterious depths. With a curious nature and a propensity for playful exploration, this charming creature weaves through the sea ice, its flexible lips and prominent forehead allowing it to forage for prey in the most inaccessible of places. As it breaks the surface, its hauntingly beautiful melody echoes through the frozen landscape, a siren's call that heralds the presence of this enigmatic and captivating beast.
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