Photo taken on Feb. 6, 2020 shows monkeys at al-Sunut Forest on the bank of the White Nile in Khartoum, Sudan. (Photos: Xinhua)

Photo taken on Feb. 6, 2020 shows the scenery of al-Sunut Forest on the bank of the White Nile in Khartoum, Sudan.

Photo taken on Feb. 6, 2020 shows the scenery of al-Sunut Forest on the bank of the White Nile in Khartoum, Sudan.