Almost all frogs fertilize the eggs outside of the female's body. The male holds the female around the waist in a mating hug called amplexus. He fertilizes the eggs as the female lays them. nudes
The brain of adult men is approximately 10% larger than that of women. Because men are typically taller and have more muscle mass than women, their brains require more neurons to control the body.
School uniforms originated in medieval England (1222)
The earliest recorded uniform was the “cappa clausa” robe ordered by the Archbishop of Canterbury.
Gonadal hormones like testosterone and estrogen play a major role in activating and maintaining libido (sexual desire) in both men and women. The influence of these hormones changes with age, and central (brain) factors become more important over time.
Your gut is sometimes called the “second brain”. The gut has 100–500 million neurons, forming the enteric nervous system that controls digestion independently of the brain.
Peak sexual encounters tend to cluster around night
A classic human behavior study found that, across adults, most sexual encounters occur around bedtime (roughly 11 PM–1 AM) — with a smaller peak after waking up.
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.