Bryan McAllister’s personal reference notebook
September 11, 2026Short & citedBlog
Civic Viewpoint.
A quiet encyclopedia with a personal desk
Kept by Bryan McAllister — short guides, clear facts, and the Canadian angle when it matters.
Field Notes • Marine Mammals

Beluga whale

The beluga whale (*Delphinapterus leucas*) is a small toothed whale native to Arctic and subarctic waters.

Updated September 11, 20261 min readCited sources

The beluga whale is a small toothed whale native to Arctic and subarctic waters. Known for its white colour and social nature, it is also called the sea canary.

What it is

Beluga whales (Delphinapterus leucas) are medium-sized odontocetes with a rounded forehead, flexible neck, and thick blubber. Adults are white, but calves are born grey. They lack a dorsal fin, instead having a dorsal ridge, and are closely related to narwhals.

Where it lives

Belugas inhabit Arctic and subarctic waters of the Northern Hemisphere, including coastal areas, estuaries, rivers, and offshore waters. In Canada, they are found around Nunavut, Quebec, Newfoundland and Labrador, and the St. Lawrence region.

Conservation status

The global conservation status is Least Concern, but some local populations face threats from pollution, hunting, and changing ice conditions. Regional groups vary widely in health and protection.

In short

  • Born grey, turn white as adults
  • Lack a dorsal fin
  • Highly vocal – called sea canaries
  • Found in Canadian Arctic waters
Canadian angle

Beluga whales are found in Canadian Arctic and subarctic waters, including areas around Nunavut, Quebec, Newfoundland and Labrador, and the St. Lawrence region, making them relevant to Canadian wildlife and conservation.

Quick questions

What is a beluga whale?
A beluga whale is a small toothed whale, scientifically named Delphinapterus leucas, that lives in Arctic and subarctic waters.
Why are beluga whales white?
Belugas are born grey and become white as they mature, which is a key feature of adult animals.
Are beluga whales endangered?
The species as a whole is generally assessed as Least Concern, but some local populations are threatened or depleted.

Sources

  1. Alaska Department of Fish and Game — https://www.adfg.alaska.gov/index.cfm?adfg=beluga.main
    Supports: species description, size, habitat, life expectancy, alternate names
  2. Alaska Department of Fish and Game — https://www.adfg.alaska.gov/static/education/wns/beluga_whale.pdf
    Supports: odontocete classification and general species information
  3. WWF Arctic — https://www.arcticwwf.org/wildlife/beluga-whale/
    Supports: scientific name, size, lifespan, conservation status, Arctic range
  4. National Geographic Kids — https://kids.nationalgeographic.com/animals/mammals/facts/beluga-whale
    Supports: social behaviour, vocalisations, diet, migration, scientific name, lifespan
  5. World Wildlife Fund — https://www.worldwildlife.org/blogs/good-nature-travel/posts/ten-interesting-facts-about-beluga-whales
    Supports: nickname, relation to narwhal, threats, social behaviour
  6. Discover Wildlife — https://www.discoverwildlife.com/animal-facts/marine-animals/beluga-whale-facts
    Supports: range, size, lifespan, locomotion and predators