An olm is seen in Postojna Cave in Slovenia, Sept. 29, 2020. Baby olms which were hatched at Postojna Cave in 2016 in a rare successful breeding are on public display for the first time this year. (Photo by Zeljko Stevanic/Xinhua)
Olm seen in Postojna Cave in Slovenia
Source: Xinhua| 2020-10-01 09:05:21|Editor: huaxia
