Are there any realistic games with animals with NO downloads

Well...Maybe fly like a bird 3 it dont download on your computer and its a bird game your a bird and you fly around a city laying nests makinng eggs and pooping on other players xd but if you REALLY want a good game do wolfquest you gotta download it though,but its a good game i used to play it i got a virus then i tried to download it again and it wont download for me...So have fun on those 2 games

Hope I Helped :-)