To begin with, it is good to remember that the word carnivore has two meanings. For biologists, it serves to classify the animals that belong to the order Carnivora. “They are part of a group of mammals with anatomical, physiological…
Aloôôôôô, voxê! On the day of the 2006 World Cup final, Fernando Vanucci started the Ball in the net, on Rede TV!, talking slurred and making a bizarre speech about the Italian national team. Within five minutes, he was replaced.…
It grows because of the division and multiplication of a type of cell, the keratinocytes. They are located in the hair bulb, a region of small structures within the skin where the strands develop, the so-called hair follicles. “As the…
ILLUSTRATIONS Flavio Ba 10. CASSAVA World consumption – 95 million tons per year Biggest consumer – Congo (261.4 kg per person per year) Native to the south of the Amazon, cassava was domesticated by the Tupi 5,000 years ago and…
ILLUSTRATIONS Icarus Yuji IMAGES reproduction 1) GAME OVER, DADDY A 4-year-old Saudi boy really wanted a PlayStation. But very much. Seriously: a lot. To the point of not being able to bear the frustration of his father’s refusal, for whom…
Some come ready-made from nature. This is the case of stevioside, better known as stevia, extracted from a plant traditionally consumed by Brazilian Indians. Others emerged in the laboratory – several of them by accident. Aspartame, for example, was discovered…
It’s true that you can’t live without the world wide web anymore. But surviving the overdose of information it offers isn’t easy either. So you don’t get lost among billions and billions of pages, we’ve selected the 100 coolest addresses…
Three factors ensured this justifiable fame: the location of the prison, its strict disciplinary rules and the large number of guards. “Alcatraz is an island surrounded by very cold waters and strong sea currents – this made it difficult to…
QUESTION André Leonardo Vieira, Joinville, SC There are a few theories, but none are certain. Some place the origin in ancient Egypt, others before that, in cave paintings, and others further ahead, in the Middle Ages. The fact is that…
There is no proof that there are more dimensions than the four we know – three of space (height, width and volume) and one of time. But for most theoretical physicists, the fifth dimension does exist. We just can’t detect…