How do skunks use scent glands to defend themselves?

Skunks utilize their specialized anal scent glands as a highly effective defense mechanism to deter predators. These glands, located at the base of the tail, produce a potent, noxious liquid containing sulfur compounds known as thiols and thioacetates.12

Using highly coordinated muscle control, a skunk can aim this spray with precision. If a predator is visible, the skunk may direct a stream at the animal's face; if the predator is unseen, the skunk can emit an atomized cloud to create a barrier. The spray is accurate up to two meters, though its total range is greater.2

Because replenishing this liquid can take 10 days or more, skunks typically employ warning behaviours first. Depending on the species, these may include stamping front paws, hissing, or performing a handstand. These visual signals provide threats an opportunity to retreat, allowing the skunk to conserve its chemical defense.21