Had a successful Viral Advertising campaign.

Average animal happiness kept in the Green for 20 minutes.

Bred an animal using one gifted from a friend.

Bred a color variant of an animal.

Bred every animal type.

Bred every animal and their color variants.

Refilled the animal cleaning stations 250 times.

Released one of every animal type into the wild.

Restocked the feeding stations 100 times.

Completed all 3 interactions with the animals.

Completed 25 treat interactions.

Completed 25 hose interactions.

Played with 25 animals.

Cleared up 1,000 pieces of poop.

Received an award.

Received 5 award in the same zoo.

Received all 20 awards in the same zoo.

Completed a challenge.

Completed 25 Challenges.

Completed 100 challenges.

Built 1st exhibit.

Repaired an attraction or enrichment.

Upgraded an attraction.

Upgraded an attraction to level 3.

Built every type of concession in the same zoo.

Increased Fame level 100 times.

Joined a friend's zoo.

Invited a friend to your zoo.

Built 15 attractions with a friend.

Filled a photo album.

Filled all the photo albums.

Completed 5 scenarios.

Completed all the scenarios.

Hired a member of staff.

Trained a member of staff up to level 3.

Started your first zoo.

Ran 10km.

Drove 25km.

Completed a scenario.

Have a guest rating of 10,000 in your zoo (Challenge Mode only).

Customized 50 different attractions.

Earned $100,000.

Earned $1,000,000.

Earned $10,000,000.

Researched an item.

Researched 10 items.

Researched everything.