Science and Technology

Snakes have often been associated with evil, either for cultural reasons or, directly, because of our survival instinct. We fear and respect them and the venom they use to hunt and defend themselves. However, as it usually happens, fear is diluted when our knowledge about them increases. In fact, they are not all equally poisonous … Read more

Life has devised a multitude of strategies to adapt and survive, such as mimesis. We all quickly think of examples from the animal kingdom, such as syrphids, some caterpillars, various butterflies or spiders that resemble ants. However, plants are not far behind. Orchids of the genus Ophrys sp. are true works of art of nature. … Read more

Nature is the best weapon engineer. Some living beings are equipped with a series of strategies and tools that it’s difficult to imagine they were generated by chance. In fact, devotees of creationism and intelligent design use these examples to vindicate their beliefs. Let’s look at the case of the carabid beetles of the genus … Read more

In the face of the current situation, which will undoubtedly mark humanity forever, a race against time has been generated to try to overcome it as quickly as possible. Not in vain, in less than a year it has shown us how vulnerable we are, but also our resilience. The most promising weapons with which … Read more

Is the end of the pandemic near? Is SARS-CoV-2, the same one that has shown how fragile the egomaniacal Homo sapiens and his civilization are, giving its last breath? Will the longed-for vaccines end with this science-fiction situation? The vaccines are being presented as the definitive solution to our problems, the definitive weapon that will … Read more

Venus is considered the brother planet of the Earth. However, since their births they have followed different trajectories that have led them to very different destinies. The current atmosphere of Venus is composed of 96.5% carbon dioxide. Toxic clouds of sulfur dioxide travel rapidly through it. But Venus has not always been so unwelcoming. It … Read more

“¡How many brave men, how many beautiful women, how many gallant young men whom Galen, Hippocrates, or Aesculapius would have judged to be very healthy, ate breakfast with their relatives, companions, and friends, and in the evening dined with their ancestors in the other world!” – The Decameron, Bocaccio 1. The disease can occur in … Read more

This is the colossal squid, Mesonychoteuthis hamiltoni. It’s also the largest invertebrate on Earth. And not only that, it is also the animal with the largest eyes, as they can measure up to 27 cm in diameter. It lives at a depth of 1000-2000 m in the cold waters of the Antarctic, New Zealand and … Read more

SARS-CoV-2, the etiological agent of the respiratory disease COVID-19, has turned our civilization upside down. It has spread in the blink of an eye across the globe. But the most terrifying thing is the death toll. Every day, thousands of people continue to swell the numbers. However, this virus is not one of the most … Read more

Endotherms, like mammals and birds, mainly use two methods to minimize heat loss by convection in cold environments: .Increasing heat production Reducing heat loss by increasing the efficiency of the insulation, but how? By empowering the BOUNDARY LAYER. The boundary layer is a layer of fluid (water or air) adjacent to the surface of an … Read more

The legs of newborn horses are 90% of the size they will reach as adults. In addition, a few hours after they’re born they can run… Just like humans, right? The average gallop speed is 44 km/h although the speed record is 88 km/h. Horses drink between 25 and 55 l of water a day, … Read more

Let’s be clear from the beginning: racism is an invention of human stupidity. If we think about it, there is nothing more absurd and simplistic than attributing someone an intellectual or innate inferiority because of their morphology or ethnicity. Racism is a belief based on a single principle: that within the human species, population subsets … Read more

Although we may find this behavior barbaric, we must try to avoid its humanization. It consists of the killing of the young offspring by a mature adult of the same species. It is a frequent behavior in the animal kingdom and it can be maternal or paternal, occur within or outside the family and take … Read more

Albert Einstein, the genius par excellence, said many remarkable things throughout his busy life. But one of his best-known and most misunderstood quotes is the following one, which he left written in a letter to his colleague the mathematician Max Born: “Quantum mechanics is certainly imposing. But an inner voice tells me that it is … Read more

The most widespread belief is that they do this to purge themselves, because of a malaise stomach, but the truth is that the evidence is not conclusive. In fact, not all dogs vomit after eating grass. However, there are many other hypotheses: It is a behaviour inherited from their ancestors the wolves: the vegetal matter … Read more

Although today we remember it as an honorable and impressive episode, the truth is that stress and anguish predominated in the Apollo 11 mission. The odds of returning from the Moon safely were really low. Maybe that’s why president Richard Nixon preferred to watch his back by having a memo written entitled In Event of … Read more