The trail of an animal is called its spoor.
were their any animals seen on the trail of tears
Ants are known to mark their trail so that other ants may follow: you might call it pheromonal warfare. Many animals mark "their territory" by leaving a scent, but ants mark their trail.
the trail is what the dogs ran on
White Pass Trail
animals !
track
mules, horses, and oxen might travel with you BUT.... 2 kinds of animals you might encounter along the California trail are... snakes, bears, ... (you were talking about the old timey trail... right?)
trail by oath is like personification or figuartive language and in the old days people call it trAIL by oath
Studying the mind of animals.
Mostly snakes
TourGuide or ranger
nocturnal