Tigers rest at a free-ranging area at the Uganda Wildlife Education Conservation Center (UWEC) in Entebbe, Uganda, July 29, 2021. The annual International Tiger Day, also known as Global Tiger Day, is celebrated on July 29 with an aim of raising awareness of tiger conservation. (Photo by Nicholas Kajoba/Xinhua)

Tigers are seen at a free-ranging area at the Uganda Wildlife Education Conservation Center (UWEC) in Entebbe, Uganda, July 29, 2021. The annual International Tiger Day, also known as Global Tiger Day, is celebrated on July 29 with an aim of raising awareness of tiger conservation. (Photo by Nicholas Kajoba/Xinhua)

A tiger rests at a free-ranging area at the Uganda Wildlife Education Conservation Center (UWEC) in Entebbe, Uganda, July 29, 2021. The annual International Tiger Day, also known as Global Tiger Day, is celebrated on July 29 with an aim of raising awareness of tiger conservation. (Photo by Nicholas Kajoba/Xinhua)

A man looks on as a tiger yawns at a free-ranging area at the Uganda Wildlife Education Conservation Center (UWEC) in Entebbe, Uganda, July 29, 2021. The annual International Tiger Day, also known as Global Tiger Day, is celebrated on July 29 with an aim of raising awareness of tiger conservation. (Photo by Nicholas Kajoba/Xinhua)