What were Some of the Earliest Complex Animals Known?

Animals are a species of creature. They generally feed on organic matter, feel, move, and move autonomously. Active or capable of moving. Including people.

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Animal is

The earliest animal and sea animal

Most of the animals known to have appeared in fossils were more than 540 million years ago

Due to the large variety of animals and the lack of in-depth research and understanding of certain taxa, humans have not yet developed a comprehensive classification system for the classification of animals worldwide. The reason for the difference is that some scholars have promoted a number of different programs to the door.

The largest vertebrate in the world is

In the golden rectangle (a rectangle with a width to length ratio of 0.618), a square is formed by three sides, and the remaining part is a golden rectangle, which can be made into a square in turn. These square centers are connected in order to get a "golden spiral". And oceanographers have found "golden spirals" in nautilus, horny bodies of some animals, or mollusks with crustaceans.

In addition, scientists have found that corals can cleverly remember the "calendar" on themselves; they engraved 365 rings on their body walls every year, that is, "paint" one day, and even more strangely, paleontologists also found There are 400 ring patterns "painted" every year by coral insects 350 million years ago. Why is this? Astronomers tell us that at that time the earth's rotation was only 21.9 hours a day, but a year was not 365 days, but 400 days. It can be seen that coral insects can "calculate" and "record" the time of one year according to the changes in celestial phenomena, and the results are very accurate.

Ants are also excellent "mathematicians". An interesting experiment conducted by British scientist Henston: he cut a dead grasshopper into three pieces, the second piece was twice as large as the first piece, and the third piece was twice as large as the second piece. After 40 minutes of those three pieces of food, there were only 28 ants gathered in the smallest grasshopper, while the second piece had 44 and the third piece had 89. The latter group was almost double the previous group.

Bees can be regarded as "genius mathematical calculations and designers". The hive built by the worker bees is quite wonderful. The obtuse angles of the rhombus at the bottom of the honeycomb it builds are all 109 ° 28 , and all acute angles are equal to 20 ° 32 . After theoretical calculations by mathematicians, if you want to consume the least amount of material, it is exactly this angle to make the largest rhombus.

Red-crowned cranes are always migrating in groups and are arranged in the shape of "people" and "one". The angle of the herringbone is always 110 °. The half angle of the "herringbone" shape is exactly 54 ° 44'8 ", but the angle of the diamond crystal is exactly this degree.