The image is a photograph of a sign in a museum. The sign is rectangular in shape and has a blue background with white text. The text reads "47 Million Years Ago" in Chinese. Below the text, there is an illustration of an Ambulocetus, a type of dinosaur skeleton. The illustration shows the skeleton of the dinosaur in mid-flight, with its head turned to the side and its mouth open. The dinosaur appears to be in motion, as if it is about to take flight.