20 interesting comparisons and facts about everything in the world (21 photos)
Our world is full of mysteries that have yet to be solved, and various interesting things. Some of them are explained by science, while others can only be guessed at. Let's look at some interesting facts from different areas of our lives. 
In the time of dinosaurs there was no grass - instead of it, small ferns grew on Earth 
80% of Soviet men born in 1923 died during World War II 
Greenland sharks can live up to 400 years. And they reach sexual maturity only at 150 years old 
All the Botox in the world is produced in a factory in Westport, Ireland 
Interestingly, suitcases with wheels appeared only after the first landing of man on the moon 
Squeezing the muscles of the abdomen and buttocks will help relieve sudden dizziness (for example, when you stand up and feel dizzy). This exercise helps normalize blood flow 
The discovery of Neptune happened "by accident." Until 1781, the year Uranus was discovered, astronomers thought there were six planets orbiting the Sun. But calculations of the orbit of Uranus indicated that there was another large body behind it. 
The planet was officially discovered on September 23, 1846 at the Berlin Observatory. The discovery was made by German astronomers Heinrich Louis d'Arre and Johann Halle, based on the calculations of the French mathematician Urbain Le Verrier.
Excessive number of fingers (polydactyly) - dominant gene 
Ancient Egypt and mammoths existed at the same time 
The space around our planet is always filled with a large number of bodies of artificial and natural origin. About 100 tons of small meteorites enter the Earth's atmosphere every day 
DNA tests have shown that whales are closer to artiodactyls (deer and bulls, giraffes and hippos) than to seals or manatees 
One drop of oil is enough to pollute as much as 25 liters of water. This is why emissions are so dangerous for the ocean 
The entire population of the Earth can be accommodated in an area of 1.98 thousand square meters. km. In this case, everyone will get 1/4 square meter. For comparison: the area of the largest city in the world - Chinese Chongqing - is 82.4 thousand square km 
In a group of 23 people, the probability that two of them will have the same birthday is greater than 50% 
The Sahara Desert was once under the ocean. You can still find shells in the sand here 
George Washington died in 1799. People proved the existence of dinosaurs in 1824. George Washington didn't know dinosaurs existed 
Sharks have been around longer than the rings of Saturn. Sharks appeared about 420–450 million years ago, and Saturn's rings formed over the last 100 million years 
Most of the nutrients are concentrated in the peel of apples. Therefore, it is useful to eat these fruits whole 
A woodpecker's tongue is so long that it can wrap around its skull. This protects the bird's brain when hitting trees with its beak 
In spring, our breathing rate is 1/3 higher than in autumn and winter. During the cold season, the body experiences a lack of oxygen due to short days and lack of sun. In an effort to quickly restore oxygen reserves, in the spring we breathe more often 
