🦌✨ White-tailed #deer mark #trees and the ground with scents, but new #research shows these spots also glow under UV light.
Since deer have eyes tuned to these wavelengths, they are essentially creating "hidden" signposts to communicate with each other during the dim light of dawn and dusk.
👉 https://www.sciencealert.com/deer-create-mysterious-ultraviolet-signals-that-glow-in-forests