Spider eating mates is a reason

The habit of re-mate your partner right after satisfying the love of the female spider is determined to be a necessary action to produce a healthy descendant.

>>>"Exchange gifts for sex" in insects

If there is the election of the greatest father in the animal world, surely the male spider will occupy the most position, then the second table.

After many years of being crippled as a fool to go to life, would rather enjoy the moment to lose his life a few seconds later, the male spider has recently been restored by the scientific community and honored as one the highest parents.

The act of sacrificing yourself to make a spider's meal for a spider after a flashy affair is intended to produce the healthiest children. In other words, this is evidence of the parents' investment for the next generation.

Eating male mates right after mating is a long-standing curious act in species such as spider 'black widows' and mantis.

In a new study, expert Klaas Welke of the University of Hamburg (Germany) discovered that in the case of a spider named Argiope bruennichi, the female tries to grab and wrap the male in the first two minutes. gather.

In the laboratory, only about 30% of males survive in the first mating phase, but by leaving their children chewing their bodies, males extend the time of sex and increase fertility. mates.

For the survivors, half of them continue to head for their second partner, while the other half attempt to conquer their first partner.

With his skinny body, males only have a maximum of 2 fun times throughout their lives. In Argiope bruennichi , male spiders are less weight than female spiders, only one-tenth heavier than females.

And according to expert Welke, miss was born as a male spider and faced a life of no more pleasure after the first act, the story of male spider giving his body to his partner is understandable to extend the time. mating and providing more nutrition for the female spawning spider alone later.

To prove this hypothesis, the experts divided the female spider into 3 groups, with each group mating with 1 or 2 or 3 partners.

Half the female spider in each group is allowed to eat 1 or 2 or 3 male spiders after being 'happy' , while the other half are deprived of good prey.

The results showed that, while male meat eating caused their eggs to be larger and the offspring were much healthier than the group that male spiders were not sacrificing themselves for.

This study was published in the December issue of Animal Behavior .