600px-Eptesicus_nilssonii_hibernating Squirrels, bats, marmots, wild mice, hamsters and hedgehogs are some of the animals that hibernate. They do this to save energy during the winter, as food is scarce in that season. The phenomenon only happens with warm-blooded animals (who…
It is made from an animal protein called collagen, most often taken from oxhide. The process begins with the preparation of the scrapings of this skin. “Then come the steps of extraction, filtration, concentration, sterilization, drying and milling”, says Alexandre…
Yes. But for that, you have to be willing. The thing is, in the Colombian jungle, you’ll run the risk of having unpleasant encounters with drug dealers, ending up in unmarked stretches in the Amazon or being kidnapped by guerrillas.…
In the classification of biologists, there is no difference, it is just a matter of regional nomenclature. “The term boto gained strength in Brazil to name the small cetacean found in the rivers of the Amazon. From then on, it…
how-is-obtained-the-energy-that-makes-our-body-work Energy is obtained from nutrients in food, such as glucose, protein and carbohydrates. To begin with, energy is not just any molecule: it is our body’s capacity to perform work, that is, to exert force or cause displacement. But…
»> Slugs, like their close relatives, land snails, are very sensitive to dehydration, that is, the loss of water from the surface of the body that remains exposed to the air. Table salt, in turn, is a hygroscopic substance, that…
The five main titles of nobility form a hierarchical ladder that obeys the following order, starting with the most powerful: duke, marquis, count, viscount and baron. In the Middle Ages, each of these nobles received a piece of land from…
ILLUSTRATED: Luda Lima According to eastern religions, such as Hinduism and Buddhism, they are energy centers that govern our physical, intellectual, emotional and spiritual stability. The word chakra comes from Sanskrit and means “wheel”, as it is believed that they…
Having a special vocal apparatus, living in a group and having above average intelligence among birds helps parrots to imitate other species. In the wild, parrots use singing to exchange information. When they are placed in captivity, however, they compensate…
O alligator Mississippi – a cousin of the alligator found in the Mississippi swamps of the southeastern United States. The bite is equivalent to wrapping your arm with a sharp denture and then supporting grandpa’s prosthesis with another 1-ton object.…