Are animals in cages a necessary evil? | CNN
So, you're tired of isolation': These powerful pics show how animals actually feel in zoo
New zoo for animals rescued from cages flooded in September typhoon Goni
America, stop visiting roadside zoos – they make money from the inhumane treatment of animals | Guardian sustainable business | The Guardian
Wild animals in captivity - Zoos, circuses & performing animals
Zoo animals escape cages amid flooding - The Columbian
Here's What Zoo Animals Have to Say About Life in a Cage - One Green Planet
Zoos Called It a 'Rescue.' But Are the Elephants Really Better Off? - The New York Times
The issue with zoos and why the killing of Marius is not the biggest problem | The non-hip hippies
Animals in Cages at the Zoo Stock Photo - Image of animal, tourism: 124559504
Five wild animals that won't do it in cages | New Scientist
Small cages and nothing to do: Hong Kong Zoo animals 'trapped in the 19th century' | South China Morning Post
Captive Wild Animal Welfare | Wild Welfare
Why people risk their lives for the ultimate animal selfie
Challenging the Treatment of Animals at Special Memories Zoo - Animal Legal Defense Fund
Zoo cage Images, Stock Photos & Vectors | Shutterstock
Should wild animals be used for entertainment at circus or zoos? | by Princess | Medium
Why is keeping animals in a cage defined cruel or wrong? Why shouldn't we do that? - Quora
The history of zoo construction is fraught and dominated by humans' desire to ignore the consequences of our actions.
Captive Animals - Animal Legal Defense Fund
Shocking photos from National Geographic show the reality of animals kept in captivity for entertainment | London Evening Standard | Evening Standard
Locked up for wildlife
These Innovative Zoos Let Animals Run Free While Humans Are The Ones In Cages
Animals Behind Bars. Zoos are a major form of entertainment… | by Sam Hayes | Medium
