Izimpawu ezingaqondakali nemifanekiso ku-Royston Cave eyenziwe ngumuntu
I-Royston Cave ingumhume wokwenziwa e-Hertfordshire, eNgilandi, equkethe izinto eziqoshiwe ezixakile. Akwaziwa ukuthi ubani owadala umhume nokuthi wasetshenziselwani, kodwa kukhona...