Difficult choices wolf spider: spider bite or make love

Feminists around the world, probably would be pleased to announced the spider allokozu Brazilian outlaw! Males of these spiders evaluate candidates for the pairing, and if the female was at his misfortune, old and beaten by life, her eating. Such behavior – a rare case, not only among arachnids, but generally in the animal world. Usually the female spiders are larger and stronger males, sedentary living and a wedding time exercise a choice, "someone to love, to whom should we believe, whom to leave without anything. Well, spiders are in constant wanderings in search of the ladies of the heart, which would let a them to yourself. In males, the first love is usually the last of the aggressive and unrestrained appetite, the local "girls", especially in anticipation of the formation of eggs: females eat narrowed after mating. But at night the wolf spider allokozy Brazilian (Allocosa brasiliensis) is different. Allokoza spiders that live on the Atlantic coast of South America, are environmental indicators, which made ​​them the object of interest of Uruguayan researchers from the Institute of Biological Research Clemente Estable Montevideo. In "Family Life" all of this spider is quite the opposite. The males sit in holes in anticipation prowl the District of females. As head of a group of scientists says Dr. Anita Eisenberg, spiders prefer to deal with the healthy and refreshed by young females, who are more likely ensure the success of their offspring. And indeed, this species has the largest first clutches, probably due to unspent potential of young Spider. If a spider looks well-worn by the female, just eat it. Most likely, males estimated visitor in appearance to, so to speak, age-related changes in her body … Article entomologists were published in Biological Journal of the Linnean Society. Habitat allokozy Brazilian does not spoil the favorable conditions: has to live in extreme temperatures, strong winds, not very safe shelters and unpredictable "supply schedule". Therefore unsuitable for breeding females and go to eat – thus eliminating an extra competitor in the hunt, from which all the same, there is no reproductive advantage. Prepared according to the BBC.