Interesting and Unbelievable Facts

Vulture is the most famous scavenger among birds. It is present on all continents except Australia and Antarctica . Vultures are among the few land birds that can  remain in the air for long periods without flapping their wings. They do so thanks to low wing loading and low aspect ratio of wings. ( Source ) It is a myth that vultures circle dead or dying animals. They  sit and patiently wait for the death of a dying animal. They mostly circle high in the sky while searching for food. ( Source ) There are mainly two types of vultures according to their location. These are Old World vultures (present in Asia , Africa, and Europe ) and New World vultures (present in the Americas). The Ruppell’s griffon vulture is the  highest flying bird  on earth . It can fly at an altitude of 37,000 ft. (11,300 m). Bearded vultures and Andean condors are the world’s 6 th  and 7 th  highest-flying birds. They can achieve an elevation of 24,000 feet and 21,300 feet, respect...

Bangladesh is a country in South Asia. It is the 5 th most populous country in Asia and 8 th in the world. Bangladesh has the world’s 7 th highest population density. Dhaka, the capital of Bangladesh, has been named the world’s 3 rd   least livable city . It has performed better than only Damascus (Syria) and Lagos (Nigeria). ( Source ) Bangladesh is the  most polluted country in the world. Its pollution index of 97.1 is far ahead of the 2 nd  most polluted country ( Pakistan with 74.27). Bangladesh has the world’s highest rate of  girls marrying before 15 years  of age. The country has the 2 nd  highest rate for girls marrying before 18 years. ( Source ) Bangladesh has the  2 nd  lowest obesity rate  in the world. Only 3.6% of adults in Bangladesh are obese. ( Source ) In 2002, Bangladesh became the first country to  ban plastic bags . Now, more than 80 countries have a full or partial ban on plastic bags.   ( Sourc...

There are around 18,500 species of butterflies on earth. They  are present on every continent except Antarctica. An important reason for the wide-scale distribution of butterflies on earth is their migration from one part of the earth to another. Painted lady and monarch butterflies are good examples that can migrate over long distances. The discovery of butterfly fossils indicate that this insect has been on earth since 56 million years ago . Butterflies are beneficial for plants as they assist in the pollination of those plants that they visit. Butterflies can carry a smaller amount of pollen than  bees , but they can take the pollen to longer distances. Butterflies also provide other benefits to plants. Harvester (a carnivorous butterfly) and a few other butterfly species  eat harmful  insects . Several birds, insects, amphibians, and other animals eat butterflies. Common  predators  of these insects are wasps, dragonflies, sparrows, parrots, f...