Why is it said that the deterioration of birds teeth is an adaptation to the life of flying

Very IQ problem.

First of all, the deterioration of birds' teeth cannot be ignored for weight loss, you take bats as an example, but I would say that birds and bats developed along two different evolutionary routes, just as insects fly differently from birds, reflecting the diversity of biological evolution.

Second, the deterioration of the teeth of birds changes the way they eat, for example, the absence of teeth makes the eating process swallow rather than chew, which gives birds more time to eat more food to provide the necessary energy for the body, compared to bats, which are less active and do not distribute to higher latitudes like birds.

In addition, the deterioration of the bird's teeth changes the center of gravity of the body, the weight of the head is greatly reduced, and the center of gravity of the body is concentrated in the middle of the body, which is more efficient and can fly faster and farther, which is crucial for birds that are active during the day and have a more dangerous environment.

I rarely review after answering questions, and if I have any questions, I feel free to send a message to criticize and question, and I can also increase my knowledge during the debate.

1.Reduced weight. Some of the bones are omitted, and of course the weight is reduced.

2.Keep your body streamlined. Birds have evolved beaks, pointed anteriors, which are the beginning of the streamlined form of the body; If there are teeth, it can greatly affect the airflow advantage of the entire streamlined body.

I think it's because of the weight, the weight loss.

It is a long-term adaptation to the environment, so I choose to evolve and disappear the teeth.

A recent study in the Proceedings of the National Academy of Sciences (CAA) has found that the gradual loss of teeth during ontogeny has been found in oviraptorosaurs and basal birds, and points out that the heterochronous development and degeneration of teeth is the direct cause of tooth loss in birds.

Birds have been adapting to the environment for a long time, and their teeth have slowly evolved and disappeared.

They don't have teeth in the first place, they don't swallow like other animals.

Because in the long course of evolution, eating habits and living environments have changed.

During long-term environmental changes, their eating habits slowly change.

The most reliable "tree of life" of birds, the most reliable to date, while revealing the evolutionary mechanisms of feathering, flight, and chirping.