An eight-year-old boy has found a set of 160-million-year-old dinosaur footprints on a Yorkshire beach.
Dinosaur-mad Rhys Nichols found the perfectly preserved 23cm tracks on a rock near his home near Scarborough.
Rhys said: "I picked up a stick and saw the prints and was quite shocked so I called my Dad who said: 'Wow!'"
His father Richard took a photo on a mobile phone. It's thought the tracks could belong to a plant-eating creature which lived during the Jurassic era.
Rhys said he was very pleased with his find because he wants to be a palaeontologist when he grows up.
"Dinosaurs are my favourite thing," he told Newsround.
The clear dinosaur footprint
Will Watts, an archaeologist from the Scarborough Museums Trust, said: "This is a great find as dinosaur prints are not normally that clear.
"Looking at the size of the prints, the dinosaur was probably the same size as Rhys. They did the right thing by taking a picture and not touching them."
But when Rhys and his dad returned to the spot where the prints had been, they were sad to find that they had gone, probably taken by someone who collects dinosaur artefacts.