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The main reason why most insects can't walk straight is that the insect's gait causes them to not be able to walk straight.
Insects have a total of six legs, three on each side and five on each side. It is impossible for them to move all six legs at the same time, nor can they move one foot at the same time like other bipedal and quadruped animals, otherwise their bodies will hang in the air or fall. Therefore, the insect divides the hexapod into two groups, the first group consists of the right forefoot, the left middle foot, and the right hind foot; The other group consists of the left forefoot, the right midfoot, and the left hindfoot.
When the insect takes a step forward, it is supported by one of the two groups, and the other group is slightly lifted off the ground and forward. In this way, the insect is always supported by a very stable triangular structure.
They first extend forward from the forefoot of a group of feet and pull upwards by grasping the surface of the object with the hook on the joint. On the other side, the middle foot, especially the ipsilateral hindfoot, stretches out the joint of the foot as much as possible to push the body forward. Due to the difference in the length of the forefoot and hindfoot, when the hindfoot exerts force forward, the midfoot and body that leave the ground are deflected to the side of the forward path, causing the central axis of the body to tilt.
When the forefoot of the other group of feet is raised, it is extended in the opposite direction to the body in order to move the body forward. The hind foot pushes hard, and twists the body in the other direction, so that the insect twists left and right in a zigzag forward.
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I didn't find that most of them can't go straight, such as cockroaches, ants, centipedes, and centipedes, you can go straight, you're talking about??? Spider, that's because of the structure of its foot joints, like a crab, OK
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1. Due to the difference in the length of the forefoot and the hind foot, when the hindfoot is forced, the midfoot and the body that leave the ground will be pushed to the side that deviates from the straight line, so that the central axis of the body is tilted. When the forefoot of the other group is raised, in order to move the body forward, it is extended in the opposite direction of the body, and the hind foot pushes hard again, and twists the body in the other direction. In this way, the insect tilted left and right, and walked forward in the shape of a "burning limb".
2. When the chicken walks, one leg is lifted first, and the other leg supports the weight of the body, the leg that is lifted first steps forward and then lands on the ground, and then the leg that supports the body is lifted again and steps to the ground. In this way, one after the other, alternately driving the body forward. Pi closed.
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When walking on two-legged and four-legged animals, most of the footprints left by them are in a straight line. But I don't know if you have noticed, when most insects crawl on the ground, they always twist left and right, in a zigzag route, never in a straight line, why is this? This also starts with the physiological structure of insects.
Insects are hexapods with 3 slender legs on each side of their chest. The front pair of legs is short, the back pair is long, and the middle pair is between the front and rear legs. When it walks, these 6 legs cannot be stepped at the same time, nor can the 3 legs on one side of the body be stepped at the same time, which will make the body hang in the air or fall down.
Thus, the insect cleverly divided the six legs into two groups: one group consisted of a right front leg, a left middle leg and a right hind leg; The other group consists of a left front leg, a right middle leg, and a left hind leg. When the insects "walk", they use one group to support their bodies, and the other group lifts slightly off the ground and moves forward.
In this way, the insect's body can always be balanced.
When an insect crawls, first stretch out a set of front legs forward, and grasp the ground with the hooked claws on the feet to play the role of pulling forward, and the middle leg on the other side, especially the back leg on the same side, will stretch out as much as possible to push the body forward. Due to the difference in the length of the front and hind legs, when the rear leg on one side pushes forward, it pushes the body in the opposite direction, causing the body to tilt. And when the front leg of the other side is raised, the back leg involuntarily kicks back, which in turn twists the body in the other direction.
So, the insect crawled forward with a twist to the left and a twist to the right.
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Most insects walk by smell.
Odors that travel through the air are difficult to appear in a straight line.
And it's also about the insect's legs.
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