Human body is a structure that can still surprise many scientists. The kingdom of animals is just as perplex. Would you ever say that hair has got to do with intelligence and the shell of one crab species looks like a samurai? The fact we have collected may leave you speechless.
#1 A Norwegian penguin that became a general
Nils Olav the Second is a penguin that is the mascot and colonel-in-chief of the Norwegian King’s Guard. Every year he receives the military parade in Edinburgh, where Norway is a guest of honor.
#2 A bee stings only once, while a wasp a few times
The sting of a bee has a few tiny hooks which cling to our skin. As a result, the insect is not able to take the sting out. It remains in our skin together with the insects bowels and the poison sac. Of course the bee dies.
Wasps, however, have a smooth sting and they can easily take them out.
#3 Pigeon nodding while walking
This is how they keep their balance and at the same time seduce the females. Apart from that, it was proven that they are really musical birds and nod to the rhythm of their steps.
#4 Dinosaurs evolved to become birds
The nearest relative of a tyrannosaurus is common hen. Velociraptor’s body was covered with feathers. That is why they were more closely related to birds than lizards.
#5 Luxuriant hair and intelligence
Aikarakuda Alias, an American psychiatrist, conducted research to prove that the more hair men have on their chest, the higher their education level. It also turned out that the most intelligent men also have some hair on their backs.
#6 The Chinese don’t drink milk
It’s got to do with evolution, not any personal choices. 95% of Asians are no longer capable of digesting lactose over the age of three.
#7 Cats recognize voices of their owners
Japanese scientists have proven that cats can recognize the tone of their owners voice. However, they ignore it and just don’t come when called. This is because they were not domesticated in order to follow their masters’ orders, unlike dogs.
#8 An infuriated crab
In Japan, there is a peculiar variety of crabs – Heikeopsis japonica. On its shell you will see a pattern reminding a furious samurai’s face.
#9 The blue of the iris is abnormal
At the beginning of the human race we all had brown eyes. In 2006 scientists discovered a gene that is responsible for the color of the iris. The first man with blue eyes dates back to the Stone Age. His body was found in Spain.
#10 In Switzerland you must not keep one guinea pig only
These animals are really sociable and loneliness is nothing they put up with. That is why once you decide to buy a guinea pig there, you have to buy at least two.
#11 Cutting your finger with the edge of paper sheet hurts more than a knife cut
Firstly, fingers have a lot of pain receptors. Secondly, paper does not actually cut skin, but it tears it apart. As a result a shallow wound is formed which does not bleed but is constantly stimulated by the flow of air.
#12 Avoiding cracks on the sidewalk
This behavior is really ‘global’. This is because our brain loves rituals. Whenever something is safe and it works, it’s worth repeating. Even kids at the age of 2 – 3, have a tendency to avoid the sidewalk cracks!
#13 You can get pregnant when you are already pregnant
Although it seems impossible, biology has its rules. A woman can give birth to twins who have different fathers (which happens once in 10,000,000 births). This might happen when a woman has sexual intercourse with two different men within 3 days up to two weeks. This phenomenon is referred to as superfecundation. This year twins like this were born in Beijing, China.
#14 Elephants respond to yawning
Elephants living in captivity can imitate people who look after them. When people open their mouth and begin to yawn, elephants do exactly the same thing. This phenomenon was also noticed among chimpanzees and dogs.
#15 Your hair can go grey in one night
Serious stress or fear might cause our hair to go grey very quickly (the so-called Marie Antoinette syndrome). This is because one kind of protein connects the immune system with hair pigmentation.