absolutely love this concept! i appreciate how intuitive all the animals' food preferences are without having to spell anything out—if this was a full game with all kinds of animals, i feel like you'd learn a thing or two from it about animal diets that you might not have known otherwise...
also, the game could maybe use a fail state, like some kind of balancing with the coins you spend and the food you have to serve—there's potential here. besides that though. the concept alone makes it worth a play