The skin of frogs is very thin, soft, and especially equipped with numerous small blood vessels just beneath its surface. It has an outer layer, the epidermis,...
Ripe bananas produce a lot of ethylene through a natural mechanism that starts in their cells. This occurs in the internal tissues, where an amino...
Bacteria adopt mimicry to camouflage themselves, like discreet spies infiltrated behind enemy lines. By copying the structures or molecules of their hosts or their environment, they deceive...
Male birds often display very bright or spectacular colors for one main reason: to attract females. This is known as sexual selection, a kind of...
Venoms may seem frightening at first glance, but in reality, they often contain very specific substances capable of interacting effectively with our body. These molecules, called toxins,...
Your heart acts as a pump that sends warm blood throughout your body via a network of blood vessels. But the further you go towards...
Color blindness is due to a genetic anomaly on certain genes responsible for producing the pigments necessary to distinguish certain colors. These specific genes are...
Male and female nipples appear at the same stage of embryonic development. During the first weeks of pregnancy, all human embryos follow the same basic...
Teeth break mainly due to violent impacts, such as falls, blows, or sports accidents. Another common reason is when you bite into very hard foods...
Cells primarily divide to ensure the growth of organisms, replace worn-out cells, and allow for the repair of damaged or injured tissues. Without cell division, your body...
