translation.en: Chimps and bonobos, Darwin didn't really know this, but chimps and bonobos mate one to four times per hour with up to a dozen males per day when they have their sexual swellings.
translation.zh: 达尔文并不知道， 其实黑猩猩和倭黑猩猩 在性器充盈的时候， 每小时交配一到四次 每天可以高达十二个雄性。 令人感兴趣的是，黑猩猩