Photo taken on Nov. 25, 2013, shows the landscape of Simien Mountains National Park, Ethiopia. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

Photo taken on Nov. 26, 2013, shows the landscape of Simien Mountains National Park, Ethiopia. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

A herd of geladas stay on the cliff of a mountain overnight in Simien Mountains National Park, Ethiopia, on Nov. 25, 2013. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

Photo taken on Nov. 26, 2013, shows the landscape of Simien Mountains National Park, Ethiopia. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

Photo taken on Nov. 25, 2013, shows the landscape of Simien Mountains National Park, Ethiopia. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

Local children sell handicrafts in Simien Mountains National Park, Ethiopia, on Nov. 25, 2013. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

Mountains are seen in the sun in Simien Mountains National Park, Ethiopia, on Nov. 26, 2013. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

A man takes photos of a 585-meters high waterfall in Simien Mountains National Park, Ethiopia, on Nov. 25, 2013. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

Photo taken on Nov. 26, 2013, shows the landscape of Simien Mountains National Park, Ethiopia. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

A hotel is seen at an altitude of 3,260 meters in Simien Mountains National Park, Ethiopia, on Nov. 26, 2013. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

A 585-meters high waterfall is seen in Simien Mountains National Park, Ethiopia, on Nov. 25, 2013. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

Photo taken on Nov. 26, 2013, shows the landscape of Simien Mountains National Park, Ethiopia. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

Photo taken on Nov. 26, 2013, shows the landscape of Simien Mountains National Park, Ethiopia. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)

Photo taken on Nov. 26, 2013, shows the landscape of Simien Mountains National Park, Ethiopia. Simien Mountains National Park is located in the northwest of Ethiopia. It is home to a number of endangered species, including the gelada, the Ethiopian wolf and walia ibex. Simien Mountains National Park was inscribed on the World Heritage List on 1978 and on the List of World Heritage in Danger in 1996. (Xinhua/Chen Duo)