If the prints overlap, the rear track was made last and is on top. If the rear foot has fallen to the outside of the front, it' s a female. If the rear foot is inside, it' s a male. If the two prints are in a direct line, it's probably an immature animal. This is generally true because males are usually broader at the shoulders than the hips.
Females have larger pelvic girdles, so their rear feet register to the outside of the front feet.
To use this technique, check several good sets of prints . Fluctuations in an animal' s gait and in the terrain can cause prints to appear where they shouldn't. A method of determining sex that can be used for any animal is based on the fact that male animals tend to walk a little more on the outside edge of their hind feet. This is to make room for their external sex organs. The rear tracks of males are consequently a little deeper on the outside, especially in the heel area.