How do tigers – a top predator – successfully hunt their prey when they have bright orange fur? The secret's in their stripes!
Life in captivity causes observable harm to the structure and function of large mammals' brains.
Colombian researchers hope to revive an endangered species by rehabilitating monkeys confiscated from smugglers. The captive animals' struggles show that survival is not guaranteed.
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?
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.