![](http://www.ecns.cn/hd/2019/07/02/3fdaeb76881845d4b6d24b69ee98da51.jpg)
A photo taken by wildlife photographer Vince Burton inside the Queen Elizabeth National Park in Uganda shows a lion resting in a tree. Only two lions have been documented scaling trees to relax on their branches. (Photo/VCG)
![](http://www.ecns.cn/hd/2019/07/02/51a0ea324e954fc9b25d00f0c453414c.jpg)
Photo shows a lioness getting comfortable for a catnap in a tree in Uganda's Queen Elizabeth National Park.