The hardness of shells is not just for aesthetics. In mollusks, it primarily serves as a protective shield against predators, such as crabs or birds, that would...
From the ground, one usually sees only a rainbow arc because our view is blocked by the horizon, the ground, or buildings. On the other...
Some fish called electric fish have special organs capable of producing electric shocks. These biological structures, known as electric organs, are made up of specialized...
Beard growth depends heavily on hormones, particularly a derivative of testosterone called dihydrotestosterone (DHT). The more DHT you have, the more your facial hair is...
The pistachio shell is mainly made of cellulose and lignin, two very resistant natural substances that make up most plant fibers. These components give it...
Iguazu Falls were formed about 150 million years ago during massive volcanic eruptions. These eruptions produced vast hardened lava flows that formed a powerful basalt...
The Dead Sea is located in a region with a very hot and dry climate. As a result, due to these high temperatures and the...
The cut of the diamond is truly THE key criterion that determines how the stone will sparkle. If it is well cut, light enters the...
Phytoaccumulation is when certain plants absorb and store large quantities of heavy metals present in their environment, such as lead, cadmium, or nickel. They take...
Leather is a natural material obtained by transforming animal hide, mainly bovine, but also ovine, caprine, or porcine. It is made up of collagen fibers, a protein...
