Darwin is credited with the opinion that crying only lubricates the eye, but today it is accepted that it has an intrapersonal and an interpersonal function.
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The sclera, known for its color as «the white part of the eye», is an opaque, resistant, and fibrous membrane that covers part of the eyeball, giving it shape and protecting its interior.
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superlluna

According to the astrophysicist and communicator Javier Armentia, supermoons do not really exist. As he explains, the term is not astronomical, but vulgar astrology.
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Vicent J. Martínez, Full Professor of Astronomy and Astrophysics of the University of Valencia, answers this question about the two sides of the Moon
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We call a mirage seeing objects where they are not. It is an optical illusion that can be seen on very hot days and in places like deserts. Inmaculada Pascual Villalobos explains this and tells us about the «Fata Morgana» effect.
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Photo: UNSPLASH

Blushing is a specifically human characteristic, since our closest relatives, such as the chimpanzee, gorilla, or orangutan, do not blush.
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It is important not to overeat food items such as legumes and vegetables, fruits such as pears or plums, dairy products such as milk or cheese, and also products like bread or cereals, with whole grains such as wheat or rye.
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Photo: PXHERE

María Soledad Prats Moya, from the Departament de Química Analítica, Nutrició i Bromatologia of the Universitat d’Alacant, explains.
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When we talk about species without sexual dimorphism, we should complete the sentence with a small note: species without a sort of sexual dimorphism that we can detect.
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Palm oil is a plant oil consisting on saturated fats, which increase cholesterol and cardiovascular risks.
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The answer to this is yes. Plants can reproduce errors in the growth of some cells, which would cause the formation of cell masses or tumours that could be considered cancers.
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Question asked by MARÍA JOSÉ ESTAY OSSES. We speak with JESÚS RIERA: The answer is yes. The air carnation belongs to the genus Tillandsia. Most plants from this genus can live

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FERNANDO SAPIÑA answers: In our everyday life, we have contact mainly with one type of alcohol: ethanol. It is the liquid we use as disinfectant for our wounds, due to its

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Why do only female mosquitoes bite?

With temperatures being so high this summer, mosquitoes (and their bites) are proliferating. But did you know that only the female mosquitoes bite? Why does this happen?
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basil mosquito repllent

Popular lore has transmitted the use of basil as a mosquito repellent to avoid their bite. Why this plant repel mosquitoes?
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Ferdinand the Catholic

It is quite likely, to procure their own common offspring, that King Ferdinand the Catholic had invigorating potions while married to Germana de Foix.
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VICENTE PALACIOS replies: One of the most striking wolf behaviours is howling. Through howling, wolves can reach and communicate from several miles of distance. Howls may contain information regarding the individual

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Question sent by ELENA SOLBES. JORDI DE MANUEL answers: Milk is an extraordinary food. It contains almost all the necessary nutrients to live and grow, but after mammals wean, they lose the

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Question submitted by FRANCESC AGUILAR I DOMENJÓ (Grau de Castelló). MANEL PERUCHO answers: The latest Background Microwave Radiation observations and type Ia cosmological supernovae indicate that the Universe has a flat

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And Why Is the Mediterranean Higher during the Winter? Question asked by FRANCESC AGUILAR I DOMENJÓ (Grau de Castelló). JOSEP L. PELEGRÍ answers: Both of our reader’s questions deal with sea tides,

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pubic hair

Question sent by ONOFRE GISBERT (Vistabella del Maestrat). PAU CARAZO answers: As we pointed out  in a recent question about why are men hairier than women, our ancestors underwent a process of

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Question sent by JORGE GIL FERNÁNDEZ (València). FERNANDO SAPIÑA answers: We can find a lot of videos on YouTube showing different phenomena in slow-motion: a bullet going through a piece of fruit,

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Question sent by LAURA RUBINAT (Tàrrega). ALBERT MASÓ answers: Well, to give an answer to that we first need to settle what we understand by «urinating». Obviously, if we limit it to

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Question sent by ROBERTO SOLANO. ANA GARCÍA answers: Women's life expectancy in developed countries is, indeed, higher. This is due to a combination of biological factors and lifestyle. There is, for instance,

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