Life in captivity causes observable harm to the structure and function of large mammals' brains.
Zoos are struggling more than most businesses.
One aquarium in Japan has asked the public to make video calls to captive garden eels so they don't forget about human visitors.
Freedom of movement for survival.
People can still learn a great deal about these mammals while keeping a safe distance.
The main food for the mountain pygmy-possum’s spring/summer breeding season is the migratory bogong moth, but in 2017 and 2018 billions of bogong moths failed to arrive. Then the bushfires did.
The slaughtered tigers were not bred in zoos, yet their story should put captive breeding in general into question.
Data collected by zoos can help scientists model the populations of endangered species.
Here's some advice on taking selfies with wild animals: don't. It's not fun for the animal, and can have serious knock-on effects for their health. And you could be injured (or worse).
Ceredigion County Council in Wales claims it had no choice. What do the experts say?
From collecting bugs to using math apps, there are many ways parents can engage in STEM activities with their kids to support their learning.
Zoos have come along way from their menagerie past. But society is increasingly demanding they become agents of conservation rather than entertainment.
Captivity isn't kind to cheetahs where most develop diseases that are unusual in big cats. It's never been clear why this is the case, but understanding their metabolism might provide the answer.
Zoos' role in conservation is divisive, but in Australia they could be critical in securing and even recovering threatened species.
Animal welfare depends on quality of territory not quantity.
It's not all about the gym and your diet. The places where we live and work shape our health, too.
Organised crime always looks for new ways to make money. And zoo animals are an easy target.
If zoo data was 'open access' we could identify the worst before too many animals die.
With circuses on the wane, are our attitudes towards animals improving?
Good zoos should be treated like they treat their animals. That means not beating them over the odd mishap.