Scientists have, for the first time, observed narwhals using their iconic tusks to hunt fish, forage, and play.
- The study also examines how they are adapting to climate change in the Arctic.
Key Findings
- Narwhals use their tusks to hunt Arctic char (Salvelinus alpinus) by stunning or possibly killing the fish.
- They demonstrate dexterity, precision, and speed in tracking prey
- Previously, scientists believed the narwhal’s tusk was used mainly for mating displays and dominance competitions.
- 17 distinct behaviors were documented, including social learning, play, and kleptoparasitism (food stealing) from glaucous gulls
About Narwhals

- They are often called “sea unicorns,” and are medium-sized toothed whales.
- They inhabit the remote Arctic waters, primarily around Canada, Greenland, Norway, and Russia.
- Their most distinctive feature is the long, spiral tusk found in males, which is actually an elongated tooth.
- Scientific Name: Monodon monoceros
- Protection Status: Least Concern (IUCN).
- Lifespan: Females(~100 years), Males(~84 years).
- Reproduction: Gestation Period (~13 to 16 months).
Narwhal Behavior & Tusk Usage
- “Tusking” behavior: Males raise tusks out of the water, possibly for ritual assessment of rivals or mate display
- Foraging and Hunting: Used to manipulate, stun, and interrogate fish
- Play & Social Learning: Evidence of exploratory-object play and personality differences among individuals
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