Caucasians usually have a narrow nose (leptorrhine), whereas African Americans have a flat nose (platyrrhine). Asians have intermediate features somewhere between these two races (mesorrhine).
Europeans have a nose with a narrow bridge. People from north Europe have wide-base noses and protruded tips, while natives to northwest Europe have pointing-up noses. In general, European people have slightly wider and longer noses compared to other ethnic groups in the world.
Middle Eastern / Mediterranean
Middle eastern noses are usually long and slightly droopy. They are characterized by bulbous nasal tips, prominent nose bridges, and large dorsal humps.
For instance, people of West African, South Asian, and East Asian descent have much larger nasal alae (the wings of the nose) than people of European ancestry. It is also well known that population differences in the nasal index—the width/height of the skull's nasal aperture—are quite substantial.
The button nose is quite charming and is prominent in people with small faces or who are Asian or European. This type of nose is long and tapered and has a pointy tip. The bridge is lower than the tip, and the nostrils are usually flared. This is seen most commonly in people with Asian ancestry.
The size and shape of your nose may not be genetically inherited from your parents but evolved, at least in part, in response to the local climate conditions, researchers claim. The nose is one of the most distinctive facial features, which also has the important job of conditioning the air that we breathe.
Indians on average had a mesorrhine nose as compared to Caucasians and Orientals who have a leptorrhine nose and Africans who have a platyrrhine nose. We thus conclude that the Indian nose should be considered a different entity in comparison to the nose of Caucasian, Oriental, and African populations.
African-Americans on the other hand have noses with wide or low bridges, flared nostrils, and bulbous nasal tip, while Hispanic noses are often broad and wide with a dropping tip, sometimes with a hump in the dorsum of their nose.
The Italian nose is unique in its structure as it has a prominent nasal bridge. As one ages, however, the tip of the nose may begin to droop, making it look disproportionately elongated and asymmetrical with other facial features.
This being said, the Turkish, Caucasian, Indian, Persian and Far Eastern races are characterized by smaller noses than those of the European or African populations.
Other Types of Noses
There are many other ethnic nose shapes such as Greek, Persian and Jewish noses. Greek noses typically have a straight bridge without bumps or curves. It is a common reference as many rhinoplasty patients want a straight bridge for a sleek-looking profile.
The turned-up nose, also referred to as the celestial nose was found in approximately 13% of the people surveyed in the general population. Research has deemed this nose shape to be one of the most attractive. The concave features of the noses displays a depression in the mid-part and a tip that protrudes.
The fleshy nose is bulbous in nature and has a large, prominent shape. More than 24% of human noses are fleshy, making it the most common nose type among individuals. CBS News has dubbed this nose type as “the Einstein,” alluding to the renowned scientist's fleshy nose.
A Greek nose is often referred to as a straight nose as it is most identifiable by its straight bridge and narrow nostrils. It is a very desirable shaped nose due to its lack of lumps or bumps and is often the nose shape shared by patients with their surgeons when they bring reference photos.
Hispanic noses possess an array of unique features when comparing them to Caucasian noses. They are wider, with a more bulbous tip, wider nostrils, and have thicker skin. They also have drooping tips with weak cartilage. The Hispanic nose tends to have weak, soft cartilage in the nasal tip and a tip which droops.
People of Lebanese descent often actually have narrower noses that are more defined. The bridges are narrow and don't have as much soft tissue. Lebanese and other Middle Eastern people have noses with skin that is mostly normal or thin.
Persian noses often feature a hump on the bridge of the nose and an elongated, drooping tip. Some patients have thick skin or nasal deviation and nasal breathing obstruction which further complicates this procedure.
East Asians are marked by their slim noses. They have the smallest noses in terms of surface area. However; east and south Asians have a larger space between their nasal alare (wings of the nose).
Wide nostrils of the aborigines again appear to depend on a small number of additive genes compared with the narrow nose of the white man. The lips of the aborigines tend to be thick throughout, but generally not everted.
People evolved to have different noses according to their climate, so you can likely tell someone's ethnicity based on their nose. The only problem might be places with similar climates. Some Indian people might have similar noses to someone in Nicaragua.
The anonymous nose is another nose shape that has the potential to claim the title of being the rarest. What makes it so unique, then? Simply put, only one face out of 1,793 people examined had this flat, rounded shape. This means that less than 0.05% of the population possesses it.
Physical traits
Caucasoid traits were recognised as: thin nasal aperture ("nose narrow"), a small mouth, facial angle of 100–90°, and orthognathism, exemplified by what Blumenbach saw in most ancient Greek crania and statues.
Our mitochondrial DNA accounts for a small portion of our total DNA. It contains just 37 of the 20,000 to 25,000 protein-coding genes in our body. But it is notably distinct from DNA in the nucleus. Unlike nuclear DNA, which comes from both parents, mitochondrial DNA comes only from the mother.
Examples of Inherited Characteristics in Humans
Some characteristics that are passed down from parent to child in humans include: Eye colour. Hair colour and texture. Skin tone.
Nixon Nose
It's one of the least common nose shapes. Basically, it's marked by its straight bridge, which curves at the end with a broader tip. It's a rare nose shape, according to research.