While you're running around, you'll notice a multitude of animals that usually run away when you get close. To get the trophy, run behind any animal and you'll notice it will start to align with the Hunter and your movements. To test an animal's loyalty, just slowly turn and you'll notice the animals also turn at the same angle.
Next, I'd recommend running as straight as you can locating other animals and getting them to join the group of animals in front of you. Do this until you have 6 animals running along side you.