Tim Zimmermann

Sumatran tiger Melati looks inside a present box put out to celebrate the first birthday of her cub triplets in their enclosure at the London Zoo on February 4, 2015.

Is it time to close all the zoos?

Science

Who doesn’t love a good zoo? The animals, for one. Many of the most popular attractions at zoos are animals like tigers and bears, who are particularly prone to boredom and depression when cooped up. That’s why some people want to close traditional zoos and take a different approach.

Will orcas be put on display at Sochi?

Environment