Chapter 1
The tooth, the whole tooth, and nothing but the tooth
Chapter 2
The great unicorn swindle
Chapter 3
Extreme survival in the frozen deep
YOUR GOAL
Master of The secret dental drama of the narwhal
Ch 1 · The tooth, the whole tooth, and nothing but the tooth
artiteacher The Narwhal's Sensory Tooth
That spiral on its head is just a giant tooth, It feels the ocean salt to get the icy truth.
artiteacher About one in 500 males grows a second tusk, yet a genetic quirk forces both to spiral in
artiteacher A sleek marble sculpture of a narwhal tusk stands under dramatic gallery spotlights.
Fun Fact
Tusk spiral direction: Every single narwhal tusk spirals in a counter-clockwise direction, even if they grow a rare second tusk.
Glossary
tusk (noun)
A long, pointed, protruding tooth found in certain mammals. Harvard researcher Martin Nweeia discovered that this spiraled structure serves as a highly sensitive sensory organ.
A long, pointed, protruding tooth found in certain mammals. Harvard researcher Martin Nweeia discovered that this spiraled structure serves as a highly sensitive sensory organ.
Quiz
Which scientist led the research discovering that the narwhal tusk is a sensory organ?