Testosterone
Videos
Testosterone is the primary male sex hormone and androgen in males. In humans, testosterone drives the development of male reproductive tissues such as testicles and prostate, as well as promoting sec
Nobel Prize winner, Leopold Ružička of Ciba, a pharmaceutical industry giant that synthesized testosterone
Courtship display
Videos
A courtship display is a set of display behaviors in which an animal, usually a male, attempts to attract a mate; the mate exercises choice, so sexual selection acts on the display. These behaviors of
Testosterone
…characteristics such as increased muscle and bone mass, and the growth of body hair. It is associated with increased aggression, sex drive, dominance, courtship display, and a wide range of behavioral characteristics. In addition, testosterone in both sexes is involved in health and well-being, where it has a significant…
Male blackbuck, Antilope cervicapra, courting a female
Male peacock spider, Maratus volans, courtship display
A male satin bowerbird makes and uses a bower to attract potential mates.
Bosc's fringe-toed lizard Acanthodactylus boskianus love bite