Why are men taller than women, what evolutionary purpose does it serve?
- Anonymous1 month ago
Evolutionism is a false faith based belief.Source(s): Jesus is God
- SciencenutLv 71 month ago
That is an interesting question. It is called sexual dimorphism. The most gender disparate species that I know of is the sea lion. The males are some 3 times larger than the females. This is thought to stem from their reproductive pattern of having one huge male owning a group of some 30 of so females. It takes a huge male to fight off the other males, as well as keeping his females in line and continuing to be loyal to him.
Among the great apes, of which we are one, the most sexually dimorphic species is the gorilla, and it is no coincidence that gorillas also use the harem method of reproduction. Gorilla males are around twice as large as their females. Curiously, gorillas have the smallest penises among the great apes, since competition for male reproduction largely depends on the amount of male muscles present. On the other hand, chimpanzees are very promiscuous, with females allowing multiple males to mate with them all the time. For this reason, chimpanzees have enormous testicles, since male competition for reproduction occurs largely within the female vagina, giving the male with the most semen discharge a serious advantage.
Humans are the least sexually dimorphic of the great apes, with females being ~80-85% as large as males. Human males also have the largest penises among the great apes, accompanied by medium to smallish testicles. These two phenomena of our species are thought to be due to the development of the "pair bond", which is unique among primates. The pair bond encourages equality of the sexes, hence the lessening of dimorphism, and the large penis encourages the pair bond as well. Furthermore, unlike other great apes, human males must cooperate with one another in order to be a successful species. The sharing of the females further adds to the cooperative spirit.
It is fun to think about.
- FLv 61 month ago
Obviously not much given that shortish men ( yes I know Napoleon was average), seem to cause the most problems in the world.
- Bulldog reduxLv 72 months ago
The answer may be found in our closest ape relatives. The more concentrated a food supply, the more females gather in one place to take advantage of it. And the more that females gather in one place, the more intense is male competition for access to females. And larger male apes generally out-compete smaller males.
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- JazSincLv 72 months ago
Women prefer taller men (ask some). Our species has a mixed mating strategy -- an appearance of monogamy but with a quite a bit of getting some on the side.
It's been enough to maintain sexual dimorphism in our species.
- Gray BoldLv 72 months ago
Male-male competition occurs when two males of the same species compete for the opportunity to mate with a female. Sexually dimorphic traits, size, sex ratio, and the social situation may all play a role in the effects male-male competition has on the reproductive success of a male and the mate choice of a female. Larger males tend to win male-male conflicts due to their sheer strength and ability to ward off other males from taking over their females.
- ZirpLv 72 months ago
partly because it happens to be related to the Y-chromosome and the subsequent hormones.
Partly it' s because girls stop growing in height once they get pregnant.
Some people who like easy answers look for links between difference in height and how promiscuous a spies is, but then they will see a species that goes against that theory
- oldprofLv 72 months ago
Men evolved as the hunters and protectors; women as the gatherers and nurturers. Because men were expected to hunt for game and because they were expected to protect the clan from marauders and wild animals, the evolved to be quicker, stronger, and bigger than women. So, to answer your question, men are taller because they were expected to protect the women and the clan as a whole.
- JimLv 72 months ago
So we are a bigger target, and also more of a treat to others or beasts.
"It makes them expendable" is an old FarSide quote.
- MordentLv 72 months ago
Males are larger in most species. It is sexual selection - males typically either fight over females directly, or show their superior health/genes through larger size. Larger males mate more, re-enforcing the trait.