SCIENCE · The New York Times
Why Did Snakes Lose Their Legs? And 9 More Animal Mysteries
Published: 2026-11-02T10:00:21.000Z · 3-Minute Executive Summary
The New York Times explores ten zoological enigmas regarding the more than 1.5 million known animal species on Earth. The list includes questions about the evolutionary history of snakes and their loss of limbs, alongside nine other biological mysteries.