45,500 years is a long, long time. It is nearly 23 times as long as the distance between the point at which you are reading this article and the birth of Jesus Christ. It is roughly 9 times as long as ...
One of the archaeologists examines a partially flooded chamber of the cave that holds many of the drawings. Ruiz-Redondo / Barciela / Martorell Two years ago, when a team of archaeologists spotted a ...
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