1 / 5   Chongqing Natural History Museum has received over 11,000 insect specimens last week. The huge collection was donated by 69-year-old Li Shuheng, who spent the past decade in the wild studying insects in the nature. /Chongqing Evening News Photo

2 / 5   Li used to work at the museum as a researcher. After leaving the job in 2008, Li committed his retirement to travelling and collecting insect specimens. /Chongqing Evening News Photo

3 / 5   To study biodiversity in China’s southwest Chongqing Municipality and Sichuan Province at large, Li made multiple trips with other researchers into deep mountains. /Chongqing Evening News Photo

4 / 5   Li is an expert in butterfly. He can identify different species of butterflies at one glance and tell their activity patterns. /Chongqing Evening News Photo

5 / 5   A few businesses have bid to pay high price for Li’s collection but he refused. He decided to donate them to Chongqing Natural History Museum so future generations could study and appreciate the beauty of natural diversity. /Chongqing Evening News Photo