how to draw a human body

Weird quirks and all, the human body is a a bewildering machine. While you may think you know your body well, the truth is, there is a lot that goes on behind the scenes that might shock you. Learn more about it with 10 of these mind-blowing facts that are sure to get your heart pumping.

1. Sorry lefties.

Right-handed people live, on average, nine years longer than left-handed people.

2. You're not the only one who's flattered.

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When you blush, your stomach also turns red.

3. The hardest worker of all.

The heart beats more than 3 billion times in the average human lifespan.

4. Well, that's unsettling.

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You can produce enough saliva to fill two bathtubs a year.

5. Our toenails need to pick up the pace.

Fingernails grow about four times faster than your toenails.

6. Time to brush extra hard.

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There are about 40,000 bacteria in the human mouth.

7. Now that's impressive.

Bones are about 5 times stronger than steel.

8. Go ahead, try it.

It is impossible to sneeze with your eyes open.

9. No wonder food tastes so good.

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Each of us has around 2,000 taste buds.

10. That's unfortunate.

People with blue eyes are more sensitive to pain than others.

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History Facts - The Ice Age

Twenty thousand years ago, humans and wolves hunted the same prey. As such, a partnership was the best choice for the two. Both parties benefited, with the wolves benefiting from human cleverness, and the humans taking advantage of wolf agility.
Since humans have a tendency to protect abandoned cubs, and wolf cubs are easily able to acknowledge and adapt to human hierarchical rules. This is the origin story of the dog-human partnership as every single dog breed originated from these ancient wolves.
Animal domestication originated from the human-wolf agreement where both species benefited from each other. Animals must have a willingness to be domesticated. Apart from wolves, other large mammals such as sheep, goats, pigs, horses, and cows were domesticated as well.
A 12,000-year-old jawbone from a dog was discovered in a cave in Iraq. It is the earliest proof of canine domestication. Puppies with strong barks who had beautiful fur, or were friendly and obedient were selectively bred.
Sheep were the first animals to be domesticated for food. Not long after, goats joined their ranks. This started sometime around 9,000 BC. More settled communities started domesticating pigs and cattle around 7,000 BC, ensuring a regular supply of meat.
Having these animals as livestock provided many additional benefits to the Neolithic man. When they died, their leather and wool were used for making clothing. Their horn and bones were used to make sharp tools. Even their fat went to a good cause: creating candles.

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