# Scientists say they have the first recorded video evidence of narwhals using tusks not only to strike and manipulate fish during feeding but also engage in what appears to be playful behaviour. The narwhal, often referred to as the “unicorn of the sea”, has long remained an enigma. Its tusk grows up to three-metres long and now appears to be used for more than courtship and hunting. Researchers have identified 17 distinct behaviours revealing a wide range of interactions and dynamics between narwhals and fish.
New study finds narwhals may be using their tusks to play