Plan of classic Pyrenean cave, Ariege.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Plan of classic Pyrenean cave, Ariege. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Plan of classic Pyrenean cave, Ariege. Wellcome Collection. Source: Wellcome Collection.