Great game! I beat the last level (the many lions on corners one). I think you should've added a win screen,
The puzzles are very well made. I like how you have to think a little more with how the lion can eat the two smaller animals.
However I don't see this game really fitting the theme. Maybe It would've followed the theme if you added a mechanic like in the description, where water starts flooding after a certain number of turns.
Also its funny how you can just kill off duplicate animals because the boat wants to rescue at least one of each animal (for some reason).