The definition sucks and the whole thing is murky as hell as far as I can tell, that's the definition though. In fact, pulled out the dictionary just now and it's even murkier because it says they're part of the same species if they can "usually interbreed" so goddamn.

> Ok, I bring up the fact that there are lots of examples of hybridization. [**Here is an exhaustive list, sorted by the distance between the parents,**](http://www.macroevolution.net/mammalian-hybrids-articles.html) which is used to make the argument that we, humans, are [also hybrids (not derived from Chimps, but a 'lucky' chimp/pig cross), as we have the typical traits.](http://www.macroevolution.net/human-origins.html) In short: * human sperm is not homogenous (non-hybrids have one type of sperm), with a high percentage being malformed/unable to swim, which is the underlying cause of human infertility, which is the most telltale mark of a hybrid. * [pigs have some very unique biology, some of which is \*only\* shared with humans, like our multipyramidal kidneys, the presence of a hymen (actually the whole human vagina was essentially lifted straight from the pig, including labia majora, uterine structure, etc), circular prostate, or the fact that pig eyes are the only ones in the animal kingdom that share our same range of eye colors, or a whole host of minute aspects.](http://www.macroevolution.net/hybrid-hypothesis-section-4.html) [And, most crucially, apparently our enlarged brains are due to the pigs capillary structure + ability to sweat from the skin.](http://www.macroevolution.net/hybrid-hypothesis-section-3.html) Apparently, the human skull has small holes to allow hot blood from the brain to cool against the scalp, a trait no primate has, and only pigs also have. However, our brain growth is lifted from the primate. Apparently, in primates and humans, the brain will keep growing until it exhausts the body's ability to cool the brain, and then it stops growing. This is why Bantu Africans / Apes / etc will keep up with White children in controlled settings until age 12 or so, when the White child will start outpacing the nonwhite. This also appears to be why North American Africans are smarter than their Bantu cousins, and why we as a whole get smarter the colder the regional average temperature + why the summer is 'murder season' + a number of other anomalies.

Mixed race offspring are too genetically dissimilar to either parent for them to donate bone marrow if the child needed it. https://www.sbs.com.au/news/why-mixed-race-minorities-struggle-to-find-life-saving-transplant-matches Anecdotally, I know a hispanic-chinese couple who had an extremely difficult pregnancy that required bedrest and the woman almost died in childbirth. Another couple is both the same european ancestry and the mom climbed mountains and went running during pregnancy and did a natural birth with no painkillers. Coincidence?

Proving yet again that scientists are half theory.