hermaphrodite

자웅동체

These worms have two sexes: male and hermaphrodite, which are essentially "modified females" but produce their own sperm so do not need a male to reproduce.

The real reason men are obsessed with sex

Researchers have discovered a new type of neuron found only in the male species

https://www.independent.co.uk/news/science/male-brain-may-contain-specific-cells-which-make-them-prioritise-sex-even-at-the-expense-of-food-a6694816.html#:~:text=These%20worms%20have%20two%20sexes%3A%20male%20and%20hermaphrodite%2C%20which%20are%20essentially%20%22modified%20females%22%20but%C2%A0produce%C2%A0their%C2%A0own%20sperm%20so%20do%C2%A0not%20need%20a%20male%20to%20reproduce.%20