Children observe a specimen of a wild boar, Jan 29, 2019. (Photo by Gao Erqiang/chinadaily.com.cn)
A specialist shows artworks featuring pigs to the visitors, Jan 29, 2019. (Photo by Gao Erqiang/chinadaily.com.cn)
Visitors read an illustration at the Shanghai Science and Technology Museum, Jan 29, 2019. (Photo by Gao Erqiang/chinadaily.com.cn)
