»> Simple: because that’s how their paw joints bend. When flexed, the paws on one side of the crab’s body pull it laterally and those on the other side of the body help, pushing the animal in the same direction.…

»> These products promise dark skin based on three factors. First, they make sunlight penetrate the skin slowly, barring part of the radiation. It’s the same principle as sunscreens, but with a much lower intensity. While in filters the protection…

»> As Chapolin Colorado would say, «calm, calm, let’s not put canic!» The way is to take the so-called morning-after pill. Through an extra load of hormones, it delays ovulation, prevents fertilization and, if the encounter with the sperm has…

For an area to be considered desert, it needs to combine at least two elements: sandy soil and a hot, dry climate, with very low levels of rainfall over a long period. The deserts that exist on Earth today have…

They are probably flying snakes, which can move about 100 meters in the air and even make 90-degree turns. Flying frogs glide in the air for up to 15 meters, a distance 750 times greater than their own size –…

They are probably flying snakes, which can move about 100 meters in the air and even make 90-degree turns. Flying frogs glide in the air for up to 15 meters, a distance 750 times greater than their own size –…

Before delving into the answer, some initial data: soft drinks are made up of a mixture of water, gas (in this case carbon dioxide, CO2) and some kind of syrup, which gives the drink its color and taste. But these…

»> Foam is nothing more than a bunch of bubbles – that is, its main ingredient is air. It turns out that it is always easier to form bubbles in a liquid that has a large amount of dissolved organic…

»> From an astrophysics point of view, a white hole is the opposite of a black hole. But this is only valid conceptually, because, in practice, there is no proof of the existence of white holes in space. They are…

Probably, the Moon was born from a blow that the Earth took. More than 4 billion years ago, our planet would have suffered the biggest impact of its existence: it collided head-on with another planet, a colossus the size of…