@CNN: This cave sheltered some of the first known humans 300,000 years ago https://t.co/80NFJJuBZR https://t.co/LNmvAIRJUo

@CNN: This cave sheltered some of the first known humans 300,000 years ago https://t.co/80NFJJuBZR https://t.co/LNmvAIRJUo