"Name an exhibit 'Cretaceous Corral' to unlock the triceratops. If you get 2 endangered animals, and they get babies, you get $10,000 free." - White_Wolf

"On Dec. 25 on the in-game calendar, the holiday tree is available in the foliage section, this is perfect for putting in a Reindeer exhibit.

You must use the Black Bear (not Grizzly Bear, not Asian Black Bear) to get the Unicorn to unlock.

Unlocking the golden paths, unicorn, etc. will NOT carry over if you save your game and then exit (at any point). When you restart that game, the unlocked items are no longer available." - K. Martins

"Ok...this isnt rele a tip its more of something i like 2 do... well at the entrance of ur zoo, put some drink and snack machines in that square lil area... o ya and a gift stand (not shop b/c it wont fit) ...and raise the prices as high as theyll go. put a chain-link fence piece in front of the entrance of the zoo so none of the guests can get into (or out of) ur zoo. They stay in the lil closed off area and buy tons of snax and drinx and you get lots of $ (and they still pay the entrance fee which i like to raise up to $100.00 hahaha). I also like to get lions and other vicious animals and let them loose inside my zoo and fire all the zookeepers so they cant cage up the animals. I enjoy watching the guests scream and run away from the lions toward a blocked off exit....haha i am evil. Good luck wichur zoo. <3" - Rudydawg2003

"If you do the Mr. Blonde, Mr. Ornge, Mr. Pink etc., the roofs of your buildings will change that color too!" - Laura

"If you name a Male guest Barfoman, he will Continue to barf until he leaves the zoo.

Name a Female Guest shopper and she will continue to buy items from all types of stands (returants, rides, shows etc.)

If you name a chimpanzee Pouch-tree she/he will turn into a koala." - Thewiseone

"If you put a mermaid statue in a tank you will get a mermaid its a girl mermaid only." - Sarah