Interesting and Unbelievable Facts

India, a country in South Asia, is the 2 nd  most populous  (after China) and the 7 th largest country in the world. India and China are the only two countries with over 1 billion human population each. Around 35% population of the entire world resides in these two countries. During the 1970s, India initiated a sterilization campaign to halt its rapidly increasing population. This campaign resulted in the  forced sterilization of millions of men. India was the place of discovery of diamonds in the 4 th  Century BC. It remained the  only source of diamonds in the world by the 18 th  Century. ( Source ) There is a glacial lake in Indian Himalayas, known as Roopkund Lake. It is commonly known as  Skeleton Lake  due to the presence of hundreds of human skeletons. DNA analysis shows that these skeletons belong to people of different ancestries. India is the 2 nd  largest English-speaking country  in the world. There are around 12...

Iraq is the birthplace of several ancient civilizations. It is therefore known as the  Cradle of Civilization . Iraq is mainly a hot desert area. Life in Iraq has depended on the rivers of Tigris and Euphrates  since ancient times. Sumer is the first civilization of Iraq. It is famous for  introducing  a writing system, wheeled vehicles, and City-States in the world. The  oldest known fictional story  is the “Epic of Gilgamesh.” The complete version of this story was written around the 12 th  Century B.C. by Babylonians. Archaeologists found its lost copy in the 19 th  Century near Mosul, a northern Iraqi city. ( Source ) Foreign empires, including Achaemenid Empire, Parthian Empire, Sassanian Empire, and the Abbasid Caliphate had their capital cities in Iraq.  Iraq has the 5 th largest oil reserves and the 7 th largest natural gas reserves in the world. The current Iraqi capital of Baghdad was established in 762 AD by the se...

Egypt is one of the few in the world and the only transcontinental country in Africa. The Sinai Peninsula of Egypt is in Asia . Egypt is the most populous country  in the Middle East and North Africa  (MENA), the 3 rd  most populous in Africa (after Nigeria and Ethiopia ), and has the 5 th largest population in the Muslim world. The  world’s longest table  is in the Egyptian capital of Cairo. The length of this table is more than 3,189 m and was used to serve iftar for 7,000 people on 2 nd  June 2019. ( Source ) Al-Azhar University in Cairo is known as the  world’s second oldest university . It was founded in   972 A.D. ( Source ) Aswan and Kharga in Egypt are the 3 rd  and 8 th   sunniest  cities  in the world. Egypt also has 2 nd  most average sunshine hours in the world after the  USA . In 2017,   archaeologists discovered  unexplored passageways  in the Great Pyramid of Gaza. This void ...

Mammals are vertebrate animals that nourish their babies with milk.  Distinguishing features  in mammals are body hairs, mammary glands, and the neocortex (part of the brain with higher intelligence functions). Only around  5% of mammals  are monogamous. Comparatively, this sexual behavior is present in nearly 90% of species of  birds . ( Source ) Suicidal reproduction, semelparity, is prevalent in  plants , fish, insects, and reptiles. But there are only four mammal species that mate themselves to death  to survive their genes. All these four species belong to insect-eating marsupials. ( Source ) Some mammals have the best night vision among animals . These include large-eyed mammals (raccoons, tarsiers, opossums, and night monkeys), red foxes, snow leopards , etc. ( Source ) Reindeers, bats, and a few rodents are the only mammals that can  see ultraviolet (UV) light . ( Source ) Monotremes and dolphins  are the only mammals with a...

So far, more than  900,000 species  of insects have been discovered. According to estimates, the total number of insect species could be between 2 million and 30 million. ( Source ) According to estimates, there are around ten   quintillion  insects on  earth . It means there are 1 billion insects for every human being. ( Source ) The  oldest insect ever found  is 410 million years old. The fossil of this extinct insect was discovered in Scotland, UK. The second oldest known insect is 379 million years old. ( Source ) Most insects have a  compound eye   structure  with a wide view angle in all directions. Only some parasitic insects lack these eyes. Insects are devoid of lungs. Their  respiratory system  contains trachea (tiny tubes) that perform the function of the lungs. The oxygen enters their tissues through minute openings in their body. ( Source ) Coleoptera is the largest insect order , which contains more than ...