Professor Lee Berger introduces Homo nalediThe advertisement on social media called for tiny and small specialised cavers and spelunkers with excellent archaeological, palaeontological and excavation skills. And there was a catch: they would work for no pay.Why wouldnt you apply, with an advert like that? recalled successful applicant Elen Feuerriegel, speaking at the Cradle of Humankind world heritage site in South Africa...