Imagine a scene 800,000 years ago. A small band of early humans trudges across a vast, muddy estuary in what is now eastern England. The air is cool but not frigid. They are far, far north of their ancestral homeland. Behind them, the fleeting impressions of their feet are left in the silt. Then, imagine … Continue reading How did the 800,000-year-old human footprints found beneath the sand in eastern England manage to survive?