The most common and widespread species of deer in North America may rely on “photoluminescence” in some surprising ways.
A fresh rub on a winged elm seen in a flashlight (left), 365 nm UV light (center), and 395 nm UV light. The ability to spot rubs and scrapes is an acquired skill. They may be invisible to rookie ...
Researchers at the University of Georgia have discovered that white-tailed deer leave behind glowing marks in the forest that are completely invisible to the human eye. Scrapes in the soil and rubs on ...