Barbary lion the King of Morocco's collection. At the beginning of the 21st century, the Addis Ababa Zoo kept 16 adult lions. With their dark, brown manes extending through the front legs, they looked like Barbary or Cape lions. Their ancestors were caught in southwestern Ethiopia as part of a zoological collection for Emperor Haile Selassie I. In March 2010, two lion cubs were moved to the Texas Zoo in Victoria, Texas, where efforts were made to preserve Barbary lions under the WildLink International conservation programme. Whether the cubs are of Barbary lion descent was not determined. In 2011, the Port Lympne
Apex predator apex predators close to extinction, but in some parts of the world these predators are now returning. They are increasingly threatened by climate change. For example, the polar bear requires extensive areas of sea ice to hunt its prey, typically seals, but climate change is shrinking the sea ice of the Arctic, forcing polar bears to fast on land for increasingly long periods. Dramatic changes in the Greater Yellowstone Ecosystem were recorded after the gray wolf, both an apex predator and a keystone species (one with a large effect on its ecosystem), was reintroduced to Yellowstone National Park in 1995