In zoo tycoon 2 ds how do you have animals mate

You cant force the animals to mate in it, they do it on there own but here are some tips for you: *If you want to have two certain animals breed put them in them same cage with no other animals. *In order for them to breed you have to have the animals almost 100% happy including food, sleep, water Etc *You cant breed two different species so don't even try. Hope this helps :)