If you look closely at an eggshell, you'll quickly notice that it is not as smooth as it appears. Under a microscope, it looks like...
Ant colonies follow a very structured organization, with the queen at the top. She is responsible for reproduction and lays eggs continuously, ensuring the colony's...
The wings of bats are unique: they are made of a flexible skin membrane called patagium, stretched between super long and thin fingers like needles. These extended...
When you squint, it is mainly the muscles around the eyelids that come into play, especially the orbicularis oculi muscle. This circular muscle contracts gently...
Pasteurization is a simple thermal treatment that allows, by rapidly heating milk to a temperature generally between 72°C and 85°C for a few seconds, to...
Wool is made up of fibers composed mostly of keratin, the same protein found in our hair and nails. These fibers are covered with tiny...
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 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...
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...
In your inner ear, you have an organ called the vestibular system. It tells you if you tilt your head, move, or lose your balance. It works...
