How do spiders tell the difference between male and female? Why do female spiders eat male spiders?

1. Color. The body of the male spider is brighter and shiny, while the female spider is darker. 2. Body type.

4. Genital poratum. Female spiders have a cover plate outside their reproductive orifices, while male spiders do not.

Somatotype. Female spiders are larger, with thick and powerful tentacles and feet; Male spiders are small in size, with small abdomen and slender feet, making them appear thin and small.

Pattern. Female spiders have only one white pattern, and male spiders have black patterns in their white patterns.

1. The female has an external female, and the male has no external female.

2. Males are smaller than females.

The presence or absence of external females (called genitals) is an important feature in the identification of female species.

Dioecious, the male body is smaller than the female, the male tentacles tarsus develop into tentacles, and the female has an outer female after the last molt.

1. The distal segments of the feet of the male spider are specialized as reproductive auxiliary organs, which have sperm storage and sperm transmission structures, and are called tentacles. The third to sixth pairs of appendages are footed, consisting of 7 segments and ending in claws. There is no major change in the female spider's distal segments.

2. Spiders are generally smaller than females, and some are of different colors, such as the bright body color of males of the jumping spider family, the dark body color of females, the red markings on the back of males of the Cancer spider family, and the green of all females.

3. Most of the general collected spiders are female spiders, and the spider's mating method is unique, and after mating, the male spider will be killed by the female spider.

According to the literature, there are 3,821 genera and 42,055 species of spiders in the world, and about 3,800 species in China, belonging to 67 families. There are a total of 14 orders in the Arachnida, 5 of which have been extinct, and 7 orders have been discovered in China.

This is also a picture of the inside of the shell that has been taken off. In the same way, the soft shell of the tail that is glued together is stretched, and then look at the middle of the two small book lungs above, there is no sperm storage bag unique to female spiders, only ordinary like a line, that is the male spider! Female

This is a picture of the inside of the shell that has been taken off, usually in the tail part of the shell, is soft, and is glued together, you must first open the tail shell before it dries to see the appearance of the picture above. Then there is the place where the arrow is pointing, which is the sperm storage bag that is unique to the mother spider, in the middle of the two small book lungs above.

Female spiders eat male spiders because female spiders cannot hunt during the breeding period, so in order to be able to give them enough nutrients, they have to eat male spiders.

After the baby spider hatches successfully, the mother spider has not eaten for a long time and does not have the slightest physical strength to hunt, and at this time the baby spider is in urgent need of nutrition, so the mother spider can only feed the baby spider by herself.

Essentially, the mating process between male and female spiders is like a battle, and female spiders are not monogamous.

It doesn't matter who the father of the offspring is, they just want their offspring to have the best genes that can not only eat multiple male spiders, but also increase the probability of survival of the young spiders by mating with more male spiders.

The goal of the male owner is to pass on his genes, and he needs to chase away competitors before mating, so that he can become the father of the female spider to breed offspring.

<>1. Genital pores: The genital pores of male and female spiders are open in the middle of the genital groove, but there is a cover plate outside the genital hole of the female spider, and the male spider does not have a cover plate.

2. Body type: Female spiders are larger, with thick and powerful tentacles and feet, and appear large and robust; Male spiders are smaller, with small abdomen and slender feet, making them appear skinny.

3. Color: The body color of male spiders is brighter and shiny, while the body of female spiders is duller.

4. Pattern: The pattern of the female spider is only one white, and the white pattern of the male spider also has a black pattern.

Male spiders are smaller, female spiders are larger, and female spiders eat male spiders during mating periods....