Why did evolution give some people big noses?

Question

Most human have small noses (especially true in asians, africans and northern europeans). However some populations have larger than usual noses. What evolutionary condition caused that? What benefit a large nose did bring to those populations? Thanks

Answer 1

Environmental adaptions and genetic selections and mutations.

Answer 2

Evolution isn't simply about facial features, big noses are primary for those with larger lung capacities for inhalation and nasal passages.

It must kick a$s when you have a cold though (lol).

Answer 3

Funny thing about humans. We just dont mate with any female thats in heat. We are choosy and so are the females.

Our traits are more of a personal selection process than natural selection or evolution.

Somewhere down the line some woman had a liking for a big nose.

Answer 4

It didn't.  Parents with big noses who mated gave people big noses.

Answer 5

Its called genes.

Answer 6

The better to smell you with my dear.

Answer 7

They were all out of little noses LOL

Answer 8

Neanderthals were said to have very large noses to help warm the air before it enters the lungs.  Certain middle-easterners are said to have them to moisturize the air since they live in a very dry place.  There may be some sexual selection or other reasons but those are the only ones that I have heard stated by scientists.

Answer 9

The reason is too controversial and against the paradigm to be accepted by most, but here is the truth. Man was created by "God, " yes, but creation is an ongoing process, and evolution does play a part. In your nose query, evolution does effect nasal size (increased width for an African, as hunters require quick, large bursts of oxygen during the chase/ increased length for a Nordic, as the elongated nasal passage and lungs work to warm the air before it reaches sensitive nerve endings). But creation played a huge part as well, as the 3 races of Asians, Whites and Blacks were not created at the same time, or by the same creators. Man was created as hybrids of existing species, one from Earth, one from elsewhere. Each race is a different hybrid, and started out with very different physical features/sizes.

Answer 10

a large nose is needed to cool the head during running. So in the warmer climates the nose hole tend to be bigger or wider. In the colder regions the nostril are smaller to reduce heat loss. But Neanderthals lived in the cold weather and had big nostrils. It was because they were very active in the cold weather and this help them sweat less in the freezing cold. So those are the factors. Activity and Temperature.