How Old Is It?

pictograph handprint in El Castillo
Dating Rock Art, How Old Is It?
paintings in El Castillo in Spain are more than 40,000 years old, much older than previously suspected
Altamira Cave, Spain
Altamira Cave, Spain
Altamira cave is Spain is one of the most pristine examples of paleolithic cave art, but the pictographs discovery is rooted in controversy
Deep Time Explained
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Time is one of the hardest concepts to wrap your head around. People have been on the earth for about 300,000 years. For almost all of that time, we've been hunter-gatherers. But how long has the Earth been here? NPR's Skunk Bear does a great job of helping us visualize Earth's history and our place in it. The video is below and the original post is here. https://www.youtube.com/watch?v=M8V_glRW1hA&feature=youtu.be