What is narwal skull?

The narwhal skull is a unique and fascinating structure, as it is typically long and narrow with a single twisted tusk protruding from the front. The tusk is actually a modified tooth, similar to those of other cetaceans, but it can grow up to 3 meters in length and is only present in males. The shape of the skull and tusk have long mystified scientists, leading to many theories about their function. Some believe the tusk is used for display, while others speculate it may be used in fighting, probing for food, or even sensing changes in the environment. The narwhal is often referred to as "the unicorn of the sea" due to its unique appearance and the mystery surrounding its tusk.