Etiqueta: biology

Rethinking conservation

Between the mid-1980s and the present day, conservation biology split into two almost independent fields: management ecology and conservation ecology. We have witnessed the recovery of large endangered species and a decrease in small and common species.

Why does our hair turn white with age?

The mechanism that produces white hair is not well known. It is very likely, although not definitely proven, due to the oxidation of melanin caused by the aging of the hair follicle cells.

Why do we cry?

Darwin is credited with the opinion that crying only lubricates the eye, but today it is accepted that it has an intrapersonal and an interpersonal function.