First, level your pet up to lvl 3. then select the saddle and go really close to your pet. Next, click on the pet and voila! You are now mounting a pet. Bosses drop 20k gold each (and 600-850 food) and 3 chest which give 14k gold each. The boss animals by the boss waves also drop some gold. Bosses also drop 3 of their pets which have a low chance to be tamed. They can be chance (like fairies) or they can be 3 of one (e.g. Dragons) Here are the gold drops for each boss wave animal:
All adult fairies (Fire, Plant, Water, Ice, Combat and Normal) 2k gold each
All boss Fairies: 4k gold each
All baby fairies 1k gold each
All other baby boss animals: 50 gold each
Adult dragons: 100 gold each
Adult Spectrums: 100 gold each
Adult spiders: 100 gold each
Adult Icebergs & Ice Golems: 90 gold each
Boss mushrooms: 5k gold each
Boss dragons: 4K gold each
Boss icebergs: 4K gold each
Boss Ice golems: 5k gold each
Boss Black spiders: 3k gold each
Boss white spiders: 2k gold each
Boss spectrums: 2k gold each
Yup I wrote all of that lol
I hope this helps (you will learn all the animals that you dont know right now later on or you can always go to the Tam-o-dex (where you see all all your tames) and see the names and skills of all of them)). I would bookmark this post xD