Low tide

Aut.MISBetley, CC-BY-NC It was a warm afternoon on an estuary, 168 million years ago. The mud was soft, still wet from the tide. Something large — eight metres long, two metres tall at the hip, moving on two legs with a stride of roughly two metres — passed through. A megalosaur, or something close enough to one that the distinction hardly mattered in the moment. It was not in a hurry. It was not…