You might have heard of the fascinating creatures called narwhals.
As the World Wildlife Fund Canada notes, they have a long tusk which is actually a canine tooth that spirals anti-clockwise up to nine feet forward from the head of adult males and a small percentage of females.
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The organisation has also release a remarkable video noting: "In this footage captured by drones a narwhal can be seen using quick taps of his tusk to stun arctic cod, rendering them immobile and thus easier to capture and eat."
It has also been pointed out that this is the first time such video evidence has been gathered on the unusual animals.