But humans' ability to reproduce was far too weak.
A human female had to spend several months, nearly a year, to give birth to a human infant. Then that infant needed more than ten years to reach adulthood and become capable of reproducing.
It was far too slow. If humans weren't intelligent, Uchiha Brahman thought, raising a human was worse than raising a pig. After all, a pig only needed a few months to grow up.
But Uchiha Brahman was, after all, kind, gentle, and merciful. In his eyes, all living things were equal. He loved this world!
So what was he supposed to do?
Actually, by the standards of nature, humans' reproductive ability wasn't bad. Humans were capable of mating year-round, unlike other animals, which had mating seasons. And although many other animals gave birth to several offspring at once, nature was cruel: not all the young in a litter survived to adulthood.
But to Uchiha Brahman, humans' reproductive ability was far too weak, with far too many flaws. Their long reproductive cycle could even result in the mother's death. And the most terrifying, most despair-inducing thing was this:
Humans couldn't reproduce asexually, nor could females change into males when the number of males in the population declined.
In other words, if only one sex of humans remained on a planet—or if only one human remained—that meant the human race had entered its countdown to extinction.
How terrifying. How hopeless. At the thought of such a future, Uchiha Brahman worried for the adorable humans and felt heartbroken. He couldn't bear to see it. He had always been a very kind animal-rights activist. Very kind indeed.
Aside from those flaws, humans could also go extinct if their population grew too small. For example, what if only two adorable humans remained