Recently, a paper about the discovery of the world's smallest dinosaur was published in the international authoritative journal Nature. The paper points out that a piece of amber found in northern Myanmar about 99 million years ago contains the smallest dinosaur fossil.
This dinosaur is about 6- 12 long and weighs only about 3g, which is similar to our present hummingbird and may be the ancestor of hummingbird.
However, through research, scientists found that the teeth of this dinosaur were very sharp, with about 60 teeth on both sides of the mandible. These teeth can help it prey on some arthropods and bite off their crustaceans. So it's different compared with hummingbirds: hummingbirds eat honey for a living, but this kind of bird wants to eat something else? Small insects? Creatures like that.
In addition, through accurate CT scanning and 3D data construction, scientists have collected a lot of data about the head of this small dinosaur, and found that the head of this dinosaur has an eye socket, which can block a lot of light, ensure that it will not be sunburned by the sun, and can be active in the sun (during the day).
However, some people questioned whether feathers and other bird-specific tissues were not found in the amber found, while other tissues were well preserved. Can this explain it? Dinosaurs? Of course, it is not a bird or a dinosaur. On the contrary, many people claim that it is only a kind of lizard because it has no orbital holes unique to birds and dinosaurs.
Xing Lida, one of the discoverers, said that academic problems can be discussed and studied according to the standard process of academic problems. He welcomes more people to participate in scientific discussions and promote further research and discovery of dinosaurs.
As ordinary netizens, we will probably only sigh that the price of amber in Myanmar is estimated to rise again. Scientists have the final say on what dinosaurs look like and eat.