Nipples don’t have muscle inside them — the erection of the nipple happens because of tiny smooth muscle fibers in the areola that contract in response to cold, touch, or sexual arousal. nudes
Hacia el 1300 surgieron los primeros relojes mecánicos en Europa, instalados en campanarios, que revolucionaron la organización urbana y agrícola al medir el tiempo mediante toques de campana
Curly hair may have offered evolutionary advantages
Studies suggest curly hair could have aided heat regulation and brain protection in early humans by trapping air and shielding the scalp from UV radiation more effectively than straight hair.
The word “fishnet” originally referred to actual fishing nets used for catching fish, and the pattern was later adapted into fashion—especially stockings—becoming popular in the early 20th century and later iconic in cabaret and burlesque culture
Black cats are black because of high levels of eumelanin pigment, and the gene that produces it is dominant. A kitten only needs one black gene from a parent to have a black coat.
