Animals
Scientists find deer leave eerie glowing trails humans never see
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 tree bark, long known as territorial and mating signals, emit measurable photoluminescence under ultraviolet light. The finding, reported on January 14, 2026, […]
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