When most people picture dinosaurs, they imagine huge hulking beasts with teeth the size of cricket bats.
But what if you could hold one in your hand?
A series of 110 million-year-old tracks made by dinosaurs the size of sparrows have been discovered in South Korea.
"These new tracks are just one centimetre in length, which means the dinosaur that made them was an animal you could have easily held in your hand," said Dr Anthony Romilio of the University of Queensland.
"They are the world's smallest dinosaur tracks."
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Scientists know the tracks were made by a dinosaur by their shape.
"Raptors placed only two of their toes on the ground, while the third toe was retracted like a cat's claw."
The prints were originally discovered by Prof Kyung Soo Kim from South Korea's Chinju National University of Education.
They admit the tracks could belong to baby raptors, but even so, they'd still the smallest ever found made by a dinosaur.
The species has been named Dromaeosauriformipes rarus, which literally means means 'rare footprints made by a member of the raptor family known as dromaeosaurs'.
The discovery was announced in journal Scientific Reports.
Newshub.