What are the ancestors of birds? Hairy dinosaurs 65438+400 million years ago were good at flying at low altitude.

Birds are creatures that can be seen everywhere in our lives. It seems that there are birds where there are trees. They have plump feathers, strong wings, developed chest muscles, which seem to contain wireless power, and short rectum and fast digestion, which are their convenient advantages in flying in the sky. Because birds' bones are fragile and difficult to preserve for a long time, people seldom find bird fossils, so it is difficult to find and explore the evolution process of birds. Let's look at the ancestors of birds.

1. Exploration on the Origin of Birds In the 1960s, Huxley, a famous British biologist, relied on his persistence in biology and curiosity about the origin of birds, and put forward an inference that was considered fallacious at that time: birds first evolved from dinosaurs. However, once this assertion was issued, it was ridiculed and despised by people. After all, dinosaurs died out more than 200 million years ago.

Another scientist has a different view. His view that dinosaurs were the ancestors of birds is obviously wrong. He is Danish Hailmann, a scientist who compiled The Origin of Birds. He believes that dinosaurs are very specialized creatures, and it is difficult to be the ancestors of another creature. Even so, dinosaurs and birds probably shared a common ancestor. After all, they have many subtle coincidences.

Then in the 1980s, with the continuous study of dinosaur fossils, people had a new understanding of the origin of birds. People first discovered dinosaur fossils with existing hairs, which are pterosaur fossils. In the process of further research, people found another more reliable bird ancestor fossil, namely Archaeopteryx, which pushed the view that the ancestors of birds were dinosaurs to a climax and made more and more people gradually agree with this view.

Second, the ancestor of birds Archaeopteryx is a creature that many people think is the ancestor of birds. Archaeopteryx has wings and feathers, and its size is the size of today's medium-sized birds. Archaeopteryx, which existed in the late Jurassic, is one of the top ten harmless prehistoric creatures in the world and the earliest hairy dinosaur found by human beings. This has to show that birds and dinosaurs have many similarities. Archaeopteryx's flying ability is poor, and it can only fly at close range and low altitude for a short time, and its habit is more inclined to dinosaurs.

Sauropod dinosaurs have a long history and once lived in an era of 65.438+0.4 billion years from today. Sauropod dinosaur fossils were first discovered in western Liaoning, China. This huge fossil with strong bones and sharp teeth is covered with feathers. Due to the particularity of removing all feathers, it is generally believed that sauropods are the ancestors of birds. After all, having wings and being covered with feathers are the characteristics of birds.

Today, the exploration of bird ancestors continues, and people have speculated and explored more or less. However, many times our guess is not so accurate, but existence is reasonable. Many times we may have glimpsed the truth, so the pace of exploring the ancestors of birds has never stopped, and our scientists are still trying to restore the truth.