Despite the myriad choices, deer scents typically fall into two categories: cover scents and lures. Cover or masking scents help obscure human odor. Examples include everything from vegetation (hemlock, acorns) to other animals (fox, skunk, raccoon). Lures, on the other hand, are meant to attract whitetails into gun or bow range. These can include food scents, such as apple; curiosity scents, such as buck urine; and sex scents, such as estrous doe urine. There are even synthetic versions that smell like deer pee or other excretions, though they contain no real animal products. Urine, however, is the 800-pound gorilla of the scent industry. Whitetail hunters embrace urine (if that's possible) like no other scent. After all, it smells the most like a real deer. The problem, Collora explains, is that most hunters don't know what deer urine smells like.