The largest spider in the world has a wingspan of up to 28 centimeters

By portal-3

La araña más grande del mundo tiene una envergadura de hasta 28 centímetros

The largest known spider is the giant goliath tarantula or birdhouse (Theraphosa blondi). It hunts by laying ambushes and its legs have a wingspan of up to 28 centimeters.

It can weigh more than 100 grams, with the maximum recorded weight being 155 grams corresponding to a female in captivity.

Theraphosa blondi

This spider lives mainly in the coastal jungles of Suriname, Guyana and French Guiana and, despite its name, they feed mainly on insects and frogs.

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Its poison is far from deadly., as is popularly believed; Their chelicerae produce a deep wound and the pain can last for 48 hours at most, as well as nausea and sweating.

Although spiders are covered in elongated villi called trichobothria, they also have an exoskeleton. When they grow and outgrow their exoskeleton, they shed it in a process called "molting."

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Some hunting peoples, such as the Yanomami, they use them as food. The Yanomamiös or Yanomamis are an indigenous American ethnic group divided into three large groups: Sanumá, Yanomam and Yanam.

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The news

The largest spider in the world has a wingspan of up to 28 centimeters

was originally published in

Xataka Science

by
Sergio Parra

.

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12/12/2020
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Adultification: the bias of treating children in an increasingly adult way

By portal-3

Adultificación: el sesgo de tratar a los niños de forma cada vez más adulta

Children are born with behavioral patterns that come as standard, certain skills that are encoded in their genes. However, these latent skills, if not activated at an early age, remain permanently deactivated. In that sense, the child is born wild, and if adequate education and social context, the boy is trapped in an aberrant wild state.

In other words, the child is not an adult, and should be treated like a child. If we do the opposite, we may be incurring a adultification bias.

Adultification and its adult antithesis

A good book on the topic of adultification is The Importance of Being Little: What Young Children Really Need from Grownups, of Erika Christakis. She uses adultification as the inability to see the world from a child's perspective.


Pseudociencia pedagógica e ideas inertes
In Xataka Science

Pedagogical pseudoscience and inert ideas

Paradoxically, we are also treating children as adults in some matters, as helpless in others, and, on top of that, demanding that women look more like children.

This study talks about this by examining the “adultification” of girls and the “youthfulness” of women in magazines, in which girls “dress up” to look like women and women “dress down” to look like girls. .


Brecha de género: solo el 9% de los chicos blancos de entornos desfavorecidos llega a la universidad en el Reino Unido
In Xataka Science

Gender gap: only 9% of white boys from disadvantaged backgrounds reach university in the UK

The analysis included a total of 540 advertising and editorial images from American women's, men's, and teen magazines. The results show that adultification prevails more than youth, that youth prevails equally in magazines for men and women, that girls who are adulted are more likely to dress provocatively and exhibit sexy facial expressions, and that advertising and editorial images are equally likely to appear adultified and youthful.

–
The news

Adultification: the bias of treating children in an increasingly adult way

was originally published in

Xataka Science

by
Sergio Parra

.

Read More
12/12/2020
Love0