
06/02/2025
Reindeer truly, truly are amazing.
During summer, reindeer eyes glow gold and turquoise to handle 24-hour sunlight. But when winter brings months of darkness, their eyes transform to deep blue!
This isn't magic - it's evolutionary genius. The blue coloration makes their eyes incredibly sensitive to even the faintest light, turning them into living night-vision goggles.
While we need flashlights to see in the dark, reindeer literally redesigned their own eyes to thrive in one of Earth's most impossible environments.
They're the ONLY mammals known to do this