Koalas may have perfected the life of quarantine long before it became a necessity in 2020. The solitary animals live alone, spending most of their time — about 15-20 hours a day — sleeping. And when ...

For months zookeepers and visitors at the Bremerhaven zoo in Germany have been waiting for this moment: the first steps of a baby polar bear cub outside its secluded birth cave. The still-unnamed ...