There are two mysterious balls hidden beneath the brown, hairy envelope known as the scrotum, which hides in the shadow of the more famous penis. With the ability to give 50% of life or bring their owner to the ground with a simple touch, they represent the Achilles heel of these gentlemen. If you even threaten to manhandle one of them, you will see them blush. However, in certain cultures, they were the ultimate symbol of masculinity and one of the elements that enabled men to establish their domination! In the following, we will share 11 interesting facts about testicles.
The human testis is about 4-5 cm long and 2-2.5 cm thick. In animals, however, the testis size varies from species to species: from 0.02% to 0.75% of the body mass. So why these differences? It appears that testis size correlates with the fidelity of females of this species.
Analyzing the testes of 334 bat species has found larger testes when females are more promiscuous. The bigger the testes, the smaller the brain. By contrast, for species where females are monogamous, their bats have more brains and smaller testes. The image shows lamb testicles, a Turkish dish.
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