Researchers Find Narwhal Tusks Have Double Spirals

Transcript

1. WinstonToday, researchers found narwhal tusks contain two opposing spirals that resist bending and twisting.
2. AsherSo the ocean unicorn was quietly engineered better than most furniture.
3. WinstonI thought a tusk was one big twisty tooth.
4. AsherIt is, except it has an inner spiral pushing back.
5. WinstonThat sounds like teamwork inside one very long tooth.
6. AsherYes. Even the tusk has better boundaries than a folding chair.