A visitor tries to touch a hippopotamus through a transparant viber glass wall in Siantar zoo, North Sumatra, Indonesia, J02/01, 2016. Binsar Bakkara
Seorang anak mencoba menyentuh mulut seekor kuda nil lewat dinding serat kaca transparan di Taman Hewan Siantar, Sumatera Utara, 02/01, 2016.
