Mammal · toothed whale
Narwhal
Monodon monoceros
PacificAtlanticIndianSouthernArctic Found in 2 oceans
- Depth
- Often 500 to 800 m, frequent dives beyond 1,500 m in winter
- Size
- About 4 to 5 m, tusk up to 3 m
- Diet
- Greenland halibut, Gonatus squid, polar cod, shrimp
- Zone
- Sunlit zone · 0 – 200 m
Key facts
- The tusk is a tooth that grows mostly in males, starting at 2 or 3 years of age.
- In winter, under the pack ice of Baffin Bay, it often dives deeper than 1,500 m to hunt near the bottom.
- It eats mostly in winter. In summer, its stomach is usually empty.
- It sucks in its prey near the bottom instead of biting it.
Verified sources
- NOAA Fisheries : Narwhal
- Laidre & Heide-Jørgensen 2005, Winter feeding intensity of narwhals
- Laidre et al. 2003, MEPS 261 : 269-281
- WWF Canada : Ten facts about narwhals
In the game: To observe