Once you select the microphone - the experiment will begin and you can ask your questions to narrow down to the specific animal. Questions such as, "Are you a mammal?" "Do you have fun?" "Are you a carnivore?" are good ones early on.
You will notice that the site will respond, sometimes with a little "Heck nah", and pronounce live with a long i.
All in all - a fun site for students to try. My 5 year old and 8 year old were able to narrow it down to eagle within 14 questions. They were pretty excited!
One last thing to point out - when trying on my Dell laptop in Google Chrome - the experiment would not load properly; however, when used on my Chromebook it worked perfectly.
Embedded below is a 1 minute and 33 second YouTube video showing what the site looks and sounds like.