Od 60 lat badają płazy [9]

(210121) -- CHENGDU, Jan. 21, 2021 (Xinhua) -- Photo taken on Jan. 20, 2021 shows a picture of a kind of frog drawn by Fei Liang and Ye Changyuan whic...

(210121) -- CHENGDU, Jan. 21, 2021 (Xinhua) -- Ye Changyuan works at the office in Chengdu, capital of southwest China's Sichuan Province, Jan. 15, 20...

(210121) -- CHENGDU, Jan. 21, 2021 (Xinhua) -- Fei Liang observes the sample of a frog's skeleton inside his office in Chengdu, capital of southwest C...

(210121) -- CHENGDU, Jan. 21, 2021 (Xinhua) -- Fei Liang (R) exchanges with his student at the Chengdu Institute of Biology of the Chinese Academy of...

(210121) -- CHENGDU, Jan. 21, 2021 (Xinhua) -- Fei Liang checks samples at the Herpetological Museum of the Chengdu Institute of Biology of the Chines...

(210121) -- CHENGDU, Jan. 21, 2021 (Xinhua) -- Fei Liang (L) and Ye Changyuan work at their office in Chengdu, capital of southwest China's Sichuan Pr...

(210121) -- CHENGDU, Jan. 21, 2021 (Xinhua) -- Fei Liang (L) and Ye Changyuan are on their way to work in Chengdu, capital of southwest China's Sichua...

(210121) -- CHENGDU, Jan. 21, 2021 (Xinhua) -- Fei Liang (L) works and Ye Changyuan has her supper at their office in Chengdu, capital of southwest Ch...

(210121) -- CHENGDU, Jan. 21, 2021 (Xinhua) -- Fei Liang (L) and Ye Changyuan observe a frog sample at their office in Chengdu, capital of southwest C...