1. Bees: Bees' hives form a diamond-shaped chassis. All obtuse angles are equal, and all acute angles are equal.
2. Butterflies: Butterflies are a calendar. They draw 365 stripes on the body wall every year and one stripe a day.
3. Ants: Scientists have done experiments and found that the number and strength distribution of ants are consistent with the proportion of food size, and the number is accurate.
4. Red-crowned cranes: Red-crowned cranes migrate in groups in a herringbone shape, and the herringbone angle is always around 1 10 degrees, and half of the herringbone angle is the same as that of diamond crystals.
Genius among animals
Honeycomb is a strictly hexagonal cylinder, with a flat hexagonal opening at one end and a closed hexagonal diamond bottom at the other end, which is composed of three identical diamonds. The rhombic obtuse angle of the chassis is 109 degrees 28 minutes, and all acute angles are 70 degrees 32 minutes, which is both firm and material-saving. The honeycomb wall thickness is 0.073 mm, and the error is very small.
Red-crowned cranes always move in groups, forming a "human" shape. The angle of the herringbone is 1 10 degrees. More accurate calculation also shows that half of the herringbone angle, that is, the angle between each side and the direction of the crane group, is 54 degrees, 44 minutes and 8 seconds. The angle of the diamond crystal is exactly 54 degrees, 44 minutes and 8 seconds. Is it a coincidence or some "tacit understanding" of nature?
The spider's "gossip" net is a complex and beautiful octagonal geometric pattern, and it is difficult for people to draw a symmetrical pattern like a spider's net even with rulers and compasses.