Zoo Tycoon will let you help real-life animals - Polygon

Zoo Tycoon, Review Thread

AnimX: Advanced Bears in Characters - UE Marketplace

Planet Zoo' And Other Simulation Games That Beat Real Life : NPR

What's so great about Zoo Tycoon? - Polygon Friends List 11/18/2013

Capybara Rigged for Maya 3D Model $129 - .ma - Free3D

Proto:Zoo Tycoon 2/Zoo Tycoon 2 Beta Build 1, Zoo Tycoon Wiki

Proto:Zoo Tycoon 2/Zoo Tycoon 2 Beta Build 1, Zoo Tycoon Wiki

Zoo Tycoon 2 Hands-On Impressions - GameSpot

Zoo Tycoon aiming to have 'the most beautiful animals, zoos in gaming' - Polygon

Are there any video games that are peaceful where you just explore at your leisure without getting attacked and can create a planet or build things? - Quora