We are curious beings and naturally we would have questions even about our body and its formation. You might have think several times that why do we have bums? If they were not there then what would have happened and what would have been there at its place.
So, we have got you answers to some serious questions.
1. Ever wondered why we have a groove between upper lip and nose?
This medial cleft is called philtrum, which exists due to how our faces formed in the womb. The philtrum is the space where all of the different parts of face finally all come together.
“Down the centuries biologists have wondered why every face has this particular feature,” explains Dr Michael Mosley on BBC’s Inside the Human Body. “What we now know is that it is the place where the puzzle that is the human face finally all comes together.”
This development which takes place in the womb between two and three months can fail to fuse and won’t ever complete resulting in a cleft clip.
2. Why do mosquitoes bite some people more than others?
There are variety of factors that can make some people more inviting to mosquitoes than others including blood type, exercise, apparel and drinking habits.
Mosquitoes are mostly attracted type O blood. People with this blood type secrete signals of what their blood type is. They are also more prone to feast on heat and sweat, which makes active people bigger targets.
Mosquitoes use vision to target and apparel colors factors. They are more likely to target who are wearing dark colors or red. Beer drinkers are more likely to spot.
3. Why some have two different colors in each eyes?
Every 11 out of 1,000 Americans have two different colored eyes which is due to condition known as heterochromia. Heterochromia can result due to excess or lack of melanin. There are many others factors due to which it can cause and can also be inherited.
The most attributed reasons scientists have found that causes heterochromia is a lack of genetic diversity. The alteration of genes which determine melanin distribution can become corrupted due to chromosomal homogeneity.
4. Why do fingers and toes wrinkle in the water?
Skin is covered with sebum, an oil that moistens and protects the outermost layer of the skin. It makes skin somewhat waterproof, that is why water runs off instead of soaking it up.
The reason why our fingers wrinkle is due to an autonomic nervous system reaction. Sebum is washed off the skin after being submerged in the water for a long time and the skin starts to become waterlogged.
Some researchers believe that our skin get wrinkled so that we can maintain grip when our hands get wet.
5. Why are our behinds round?
The roundness of our bottom was determined back in the evolution process. Considering our ancestors were avid hunters and actively ran to catch prey, these muscles naturally became well shaped.
Also, due to our bottom’s location at the end of digestive system, the extra flesh prevents unwanted smells from leaking.
There is also factor that sitting would be incredibly uncomfortable without some additional posterior cushioning. The round behind helps support the body and maintain a helathy posture while sitting.