If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
How about a visit at the zoo? You're not going to be a mere visitor this time, but you'll be stepping into the shoes of a young detective, you know! Yup, get ready to scan those cages, those waterholes, round pens and all those friendly wild animals' skin, fur, horns and claws, becoming their ultimate hero due to your differences spotting skills. Enjoy!
Use your mouse to interact!