Have you ever heard of hummingbirds? According to the editors understanding, hummingbirds are the smallest warm-blooded animals in the world. They are small and exquisite in size, and their wings flap at the highest frequency, with the fastest frequency reaching more than 50 times per second. Moreover, the flying skills of hummingbirds are very superb. They can fly upside down, vertically up and down, and can even stay motionless in the air for up to several minutes. Isn’t it amazing? The editor was very surprised when I heard this kind of bird for the first time. I also developed the origami method for hummingbirds. Follow me and learn together
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