Hidden Fact 9

Our fingers don't have muscles(except the arrector pili muscles). Yes, our fingers don’t contain any muscles, in-fact the muscles that control the movement of the fingers are present in the palm and the forearm. The muscles used to close your hand is known as flexors, and the ones that use to open your hand are known as extensors.

This is because they are herbivores animals while eating green grass and all they have to also protect themself from the hunters, in which their eye plays a very important role. So that even if they are eating by laying their head down they can see the whole horizontal view.

Do you want to know some interesting facts about a scorpion? Just click on  Scorpion facts .

We use only 1% of the total water available on earth. As We know, about 71% of the earth is covered by water of which about 96.5% is in the ocean, 2% is in the form of ice caps and the remaining is available in the form of fresh water in rivers, ponds, lakes, groundwater, etc. And from all these sources we use nearly about 1% of the total available water only.

Shrimp's heart is located at the bottom of its head. The shrimp's heart is located in its thorax, which is just after the head. But both the head and the thorax are found in one exoskeleton only. It has three pairs of  heart  entrances. Through these entrances, blood comes to the  heart .

An ostrich's eye is bigger than its brain and is the largest eye of any living land animal, which measures up to 5 cm (2 inches) in diameter.

Our nose and ears never stop growing in our whole life. As we get older the maximum parts of the human body stop growing after one age. but some parts of our body like the noses, earlobes, and ear muscles keep getting bigger and never stop growing the entire life. This is because they are made up of mostly cartilage cells, which never stop growing and get bigger and bigger as we get older.

Human teeth are as strong as shark teeth!  although the size of the human teeth is not as big as the shark's teeth. but studies state that the human tooth is stronger than that of the shark's.

Venus is the only planet that spins Clockwise . No one have explanation for that, but a team of scientists from the French research institute Astronomie et Systemes Dynamiques have proposed a new explanation that, it always rotate in the same direction as other planet do , it just flipped it's axis by 180°.

A bolt of lightning is five times hotter than the sun. Air is a very poor conductor of electricity and gets heat up when lightning passes through it. In fact, lightning can heat the air it passes through upto 50,000° F (5 times hotter than the surface of the sun). 

Half of the dolphins brain is never asleep. They do like this to be alert from other predators while sleeping. And also not to be get hurt by sea obstacles. Just imagine if humans can do such things, i guess our productivity will increase. Comment your opinion below

The dense Neutron star,  A neutron star can spin 600 times in a second. They are formed when a massive star runs out of fuel and collapses. Due to this collision every particles get attracted towards the core and a very densed neutron star is formed. 

Sound waves don’t travel through space, because waves are nothing but vibration that can travel through air, water or metal. And empty space dont have any of these. Thus sound dont travel in empty space.