What the tracking system does

The official FAQ says animals create tracks dynamically between need zones, and spooked animals can generate temporary tracks as they move. It also says the dog can search signs, locate active life zones, and track wounded animals by following blood trails.

What to do when a trail is hard to read

Use the high-contrast track style added in Version 1.0 under Settings > Game. The official sources do not document a single universal button sequence for activating each dog behavior, so follow the prompts in your current build rather than copying unverified controls from an older video.