The densest forest of Juniperus thurifera is in Soria

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Did you know that the world’s densest forest of Spanish junipers is in Spain? Specifically in the medieval Soria town of Calatañazor. This Natural Reserve is home to 150-210 Spanish junipers (Juniperus thurifera) per hectare, which are also considered to be the highest in the world (some are over 15 metres high). Spanish junipers have … Read more The densest forest of Juniperus thurifera is in Soria

The peculiarities of hummingbirds

Hummingbirds are a family of birds (Trochilidae) composed by many species. The size of the hummingbirds varies depending on the species: the smallest weighs about 2.2 grams and the largest about 20 g. They feed on flowers’ nectar (they are important pollinators) and small insects. They have a very large heart beating at more than … Read more The peculiarities of hummingbirds

The apparition of the Virgin Mary that inspired the flag of the European Union

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Even if we don’t realize, mysterious events and enigmas surround us constantly. So much so that mysteries have inspired all sorts of issues that we see or experience on a daily basis, and whose enigmatic foundation we do not know. Such is the case, for example, with the flag of the European Union. On the … Read more The apparition of the Virgin Mary that inspired the flag of the European Union

Ballooning or the flight of spiders

This type of displacement basically consists of “floating” in the air through silk threads. That is, the air pushes the silk thread and the spider will hang from it in the air. The spider is usually placed in an elevated area, aims the opisthosoma (“abdomen”) upward and expels the thread… A timely blast of air … Read more Ballooning or the flight of spiders

The UFO investigations of the Pentagon

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The Advanced Aerospace Threat Identification Program (AATIP) was a secret Pentagon program that lasted 5 years, from 2007 to 2012. With a budget of 22 million dollars, its objective was to identify unidentified aircraft that could be a threat to U.S. National Security. We know about it because his director, Luis Elizondo, leaked information in … Read more The UFO investigations of the Pentagon

The tricks of some insects to ensure offspring

Females can be fertilized by several males because the sperm share space once inside the female. As a result, different types of adaptations have appeared to ensure the reproductive success of males. Two types of adaptations can be distinguished: 1. TO ACHIEVE A PREFERENTIAL USE OF SPERM. The best known case is that of some … Read more The tricks of some insects to ensure offspring

The fake news algorithm

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Great minds of the 21st century such as Elon Musk or Stephen Hawking have already warned of the potential dangers of an Artificial Intelligence out of control. We may be on the verge of the first signs. The non-profit company OpenAI, responsible for the development and creation of AI beneficial to humanity, has decided to … Read more The fake news algorithm

Sodium and the courtship of butterflies

Courtship is defined as specific behavioural patterns that induce sexual receptivity, i.e. it facilitates recognition between species and also serves as a mechanism to prevent mating between different species. It can be done by visual, tactile and/or chemical stimulation. A curious mechanism is that of some species of butterflies, called “puddling“, which consists of the … Read more Sodium and the courtship of butterflies

“Guernica”. A family self-portrait?

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Since our school years we have been bombarded by an infinity of data that we accept without saying a word. For example, we have always been told that Guernica, a masterpiece of Cubism, illustrates the horror experienced during the bombing of the Basque town of the same name on 26 April 1937 in the context … Read more “Guernica”. A family self-portrait?

The peculiarities of gibbons

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They do not present sexual dirmorphism (differences between males and females) in size neither in dentition, only in coloration in the first two genera of the 4 existing ones: Nomascus, Hoolock, Hylobates and Symphalangus. The intermembral index (length of upper extremities/lower ext*100) is the highest of all primates: 127-147. They are the only apes with … Read more The peculiarities of gibbons

A language to alert humans of the future

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Dr. Thomas A. Sebeok, of the Research Center for Language and Semiotic Studies at Indiana University, never imagined the request the Ohio Office of Nuclear Waste Isolation would make to him: to build a language system to warn people of 10000 years in the future of the places where potentially hazardous nuclear waste is buried. The … Read more A language to alert humans of the future

The fossil that didn’t want to be Neanderthal

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Today, the existence of our evolutionary companions, the Neanderthals, seems irrefutable to us. However, when their remains began to emerge, the scientific community categorically refused to recognize they were facing a new species. In 1856, some quarry workers found a set of bones inside the Feldhofer cave, located in Neander valley (where the name of … Read more The fossil that didn’t want to be Neanderthal

Kenneth Parks, the sleepwalking killer

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Parasomnias are still very mysterious. Sleepwalking or noctambulism is part of this set of sleep disorders, and although it is the best known, there are still many mysteries around it. A paradigm in this regard is that of sleepwalking killers, who on more than one occasion have put courts in check. It is still incomprehensible … Read more Kenneth Parks, the sleepwalking killer

Meet the Aye-aye

Daubentonia madagascariensis, also known as Aye-aye is a strepsirrhine endemic to Madagascar. Acording to the UICN Red List, it is endangered. They usually weigh between 2.5-2.7 kg and their life spectancy is about 24 years in captivity. SOME CURIOUS AND UNIQUE  MORPHOLOGICAL FEATURES They are the largest nocturnal primates. They have orange eyes surrounded by … Read more Meet the Aye-aye

An egg sack to take care of the offspring

The spider Agroeca brunnea makes a simple-looking egg sac and usually attaches it to an elevated site. But the curious thing is that it is bicameral, composed by the chamber of the eggs (1) and the chamber of molt (2). Eggs hatch in chamber 1 and newborn spiders pierce the cover plate, falling into chamber … Read more An egg sack to take care of the offspring

The accidental origin of Heavy Metal

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There is no doubt that Heavy Metal has been one of the most indispensable artistic creations of humanity. Its enormous variability and richness also allows it to adapt to any type of audience. However, did you know that an accident caused the birth of this musical art? The protagonist of, to a certain extent, the … Read more The accidental origin of Heavy Metal

The orangutans’ “trick” to ensure their reproductive success

Orangutan females reach sexual maturity at 11-15 years. Males reach puberty at 7-9 years and thereafter they have 2 possibilities : 1.Reach adult size with all its features (such as lateral facial pads -green arrow-). 2.Stay in an adolescent state (development interrupted) in terms of morphology, but still are fertile and reproductively active. Possible meaning? … Read more The orangutans’ “trick” to ensure their reproductive success

Excommunicated animals

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In an effort to ensure power and faithfulness to God, the Church has created all sorts of strategies. One of the best known is excommunication. Excommunication consists in the social and ecclesiastical exclusion of the condemned person from the sacraments. This punishment was imposed on people of all walks of life. But also to animals, … Read more Excommunicated animals