"New research discovers the twisty secret behind the narwhal's unusually straight tusk
Study finds opposing layers of spirals that counteract each other, allowing the tusk to grow straight
The narwhal tusk is a true oddity in the natural world."
Framing: assertive ·
First seen: 2026-08-19 ·
Last seen: 2026-08-19 ·
Spread: 1 articles