Peekaboo
Jayaprakash Joghee Bojan captured this image of an orang-utan in the Sekoyner River in Tanjung Puting National Park, Borneo, to win the 2017 National Geographic Nature Photographer of the Year title. Despite the risk of crocodiles, Bojan, from Singapore, waded into the water and caught the large male as it peered around a tree to see if he was still there.