Cool idea! it is hard, to know when to use your ability to eat animals and when to play it safe and get closer to them using just your controls, but it makes it also a part of the challenge.
Also, it is great that you've added a tutorial in the main menu! I think that a cool twist you could've done with your game is to make some animals like the fox be an ant in disguise and you have to guess which animal is the ant to then eat it and get bigger (by seeing which one runs away from you)
I think that the main thing is making the theme part of the gameplay, and kind of giving it a twist rather than just using it as a part of the story, which was a difficult task in our game too!
Overall really enjoyed it, couldn't get past the strawberry, it seems like the main challenge here is not the foxes but mostly the mana/health bar, great submission!