A recent Reuters story reports that biologists in Guatemala rely on Calvin Klein's Obsession for Men to attract jaguars for tracking and research purposes.

Use of the cologne stems from research done by The Wildlife Conservation Society at the Bronx Zoo, where researchers tested the effect of numerous scents on cheetahs. According to a recent Wall Street Journal article, it was discovered that out of 24 scents tested, Obsession for Men was the favorite, with Nina Ricci's L'Air du Temps coming in second. Others fared much worse, such as Estée Lauder's Beautiful and Revlon's Charlie.