Facts about Narwhal Tusk Function
- 06
During Arctic dives, narwhals can detect prey fish hidden beneath sediment by using their tusk's sensory capabilities to sense electrical fields and vibrations in the water.
- 05
Females rarely develop a tusk, making the structure a secondary sexual characteristic largely unique to male narwhals.
- 04
A leading hypothesis suggests the narwhal tusk functions as a hydrodynamic sensor, detecting changes in water temperature, salinity, and pressure.
- 03
Male narwhals are sometimes observed crossing tusks in a behavior called tusking, which may play a role in social hierarchy and competition for mates.
- 02
Research using CT scanning revealed that the narwhal tusk contains millions of nerve endings connected to the outer surface, suggesting a sensory function.
- 01
The narwhal tusk is actually an elongated upper-left canine tooth that grows through the whale's lip and can reach lengths of up to 3 meters.