If we ask you which is the most complicated system in the world, what would your answer be? The answer would be ‘the human body’. The human body is simply the most complicated system present in the entire world. But one thing that is worth noting is that the human body has evolved over the many years. This evolution occurs as a result of the adaptability that we as humans, have adopted over changing periods of time. Getting to know the signs of human body evolution can help us understand better.
“Today we are even manipulating the DNA that makes us possible in the first place—a case of evolution evolving new ways to evolve.” ― Chip Walter
Let’s quickly take a look at some of the mind-blowing evolutions that have taken place among humans. Read on to find out the reason behind these body signs: –
Do you get goosebumps and your hair stands right up whenever you are watching a scary movie? This is similar to a cat where the hair stands up whenever the cat freezes and feels threatened. Have you ever wondered why this happens?
Reason: The hair stands and the goosebumps helped our ancestors appear bigger whenever they felt threatened. This was simply a defense mechanism which worked in the stone age.
2. Wisdom Teeth
The is the last pair of teeth that grow when you finally become an adult. But, have you ever wondered as to why wisdom teeth grows at a much later stage of life?
Reason: Our ancestors used to lose teeth easily due to low standards of hygiene back then. The wisdom teeth would grow at this time in an order to help our ancestors chew the meat and food. If not for wisdom teeth, our ancestors would have had to survive on some pre-historic soup.
3. Less Hairy
Over years and years of evolution, one significant change in our human bodies has been the ‘body hair’. Back then in the stone age, humans were covered with body hair. As the evolution of the body started occurring, we started shedding body hair. There is a reason to this as well. Find out below.
Reason: Human hair is used to regulate the body temperature. Nowadays, we humans have become more sedentary and this has caused us to shed more hair. Our body is much more capable of regulating its temperature better nowadays.
4. Arm’s Tendon
You can try this right now as you read. Touch your pinkie with your thumb in the same hand and you will see a tendon popping up. This tendon in your forearm was to serve some purpose obviously in the past.
Reason: This is the same cord that allows other animals help move around on four legs. In case you are unable to see it, then you belong to the minority of the people for whom it has already disappeared.
5. Fingers & Water
Have you observed your fingers after it has been under in water for a long period of time? Your fingers become a little different and get back to normal after a while when let to dry.
Reason: Your fingers probably become like this as it might have helped the first hominoids to catch grab submerged objects better under water. This was probably how humans first started catching fish and eating them.
Toes were similar to fingers back then as it helped humans to grab on to things easily while climbing trees. But right now, our toes aren’t that functional as they help us to only stand upright. But you may be surprised to hear that babies know how to use their toes in all possible ways and grab their toys.
The coccyx is actually a bone which is found at the base of your spine. This is actually an extension of our ancestor’s tail. The growth appears in a very minority of people nowadays and is simply not really useful. But back then, the tail helped in maintaining balance while our ancestors moved around swiftly.
8. Your Ears
We bet that you have that one friend who is able to move their ears independently. This is a characteristic of other mammals as well. Even now if you can observe, your ears will always move towards the direction of noise.
9. Even Men have Nipples
You must have wondered that nipples in men are not functional, then why do men have nipples in the first place? This is a very interesting question that you might have. Read below to find out.
Reason: Every fetus is female until 6 weeks. There are certain attributes like nipples that are common to all humans. Sexual differentiation occurs afterward when female nipples develop while male nipples remain visible.
Now that you’ve read this article, we hope that you found this article knowledgeable and useful. If you did, please spread the love by sharing this with your friends and loved ones. What is your take on the evolutions of humans? Share with us in the comments below.