Hi, thank you for trying our game. You need to bring "packs" of pets to the villages (maybe not in the tutorial levels though), that's the connection to the theme ;)
Hi! In the pause menu (with Escape key), the connection to the theme is made a bit more explicit: "Gather your pack of lost pets and return them to their villages! But beware of the food chain, or you’ll end with your pets eating each other in your pack! "