The classic orange color of carrots mainly comes from beta-carotene, an orange pigment that gives a healthy glow and belongs to the family of carotenoids. But it...
Carrots were originally cultivated over 1000 years ago in what is now Afghanistan and Iran, and guess what: they were mainly purple or violet! The...
Tickling activates several regions of the brain, notably the somatosensory cortex, responsible for the perception of touch, and the anterior cingulate cortex, linked to emotional...
The rocks surrounding the caves are often excellent thermal insulators. They are very dense and thick, making them particularly poor conductors of heat, thus significantly...
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...
