Woman banned from keeping animals after locking cats in cages - ABC News
Last Chance for Animals - Zoos
What's wrong with Cages? | Compassion in World Farming
Wild animals in zoos and circuses | The Humane Society of the United States
17 Pros and Cons of Keeping Animals in Captivity – ConnectUS
Roadside Zoos and Other Captive-Animal Displays | PETA
Captive animals trapped in war are suffering too
12 Reasons Why Animals Should Not Be Kept in Zoos
Pros and cons of zoos: Should animals be kept in zoos? - netivist
How Does Captivity Affect Wild Animals? | Discover Magazine
Keeping Wild Animals in Captivity Is Not Conservation. Here's Why. | World Animal Protection
Opinion | Zoos Are Bad for Animals - The New York Times
Should Animals Be Kept in Zoos? | The Minimalist Vegan
Captive Animals - Animal Legal Defense Fund
9 Reasons Not to Visit Zoos
Is it time to shut down the zoos? | Zoos | The Guardian
Zoos Cause Animals Far More Harm Than Good
Crisis of Cruelty in Canada's Zoos - Animal Justice
Should Animals Be Kept in Zoos? | KQED Education
How to Spot the Clues of Cruelty | ASPCA
What's Wrong With Caged Birds? How Birds Suffer in the Pet Trade | PETA
Here's What Zoo Animals Have to Say About Life in a Cage - One Green Planet
Whether it's Orcas or Tigers—Captivity is Cruel - Animal Legal Defense Fund
Captive Animals - Animal Legal Defense Fund
Last Chance for Animals - Zoos
How animals feel when kept inside cages - Are you looking for cages,crates and carriers to transport your pets?
Zoos - Pros & Cons - ProCon.org
Why is keeping animals in a cage defined cruel or wrong? Why shouldn't we do that? - Quora
12 Reasons Why Animals Should Not Be Kept in Zoos
End the Cage Age - FOUR PAWS Australia - Animal Welfare Charity
Why Are Zoos Bad? Why Animals Should Not Be Kept In Zoos
