Whitetailed deer

If you haven't disguised your scent, these whitetailed deer will smell you coming.

Jeffrey Phelps/Getty Images

The American whitetail deer has one of the most tale­nted noses in nature. It's estimated that a deer's sense of smell is 100 times greater than a human's [source: Buck Stop]. A mature buck relies on windborne odors to sense the presence of an available female, a male interloper and, most importantly, to alert him to the threat of danger.

Experienced hunters are taught to pay close attention to direction and force of the wind during a hunt. If a human is within range to harm them, they expect to smell a strong human odor. If an animal only smells a scant trace of human odor, then it assumes that the predator is too far away to be a threat [source: Ross and Adams].

­A successful hunter will do everything possible to hide his presence from prey, but all the camouflage in the world won't cover up your distinctive smell. The first step is to understand the behavior of wind and air currents and use them to your advantage. The second step is to mask as much of your human odor as possible through scent-killing soaps, cover scents and even attractants or lures.

Keep reading to find out what you can do both before and during the hunt to mask your smell from the sharp nose of your prey.