History of perfume: Perfumes have been used for about as long as history can be recorded. Though hygiene expectations have changed over time (Queen Isabella of Spain boasts that she only took two baths in her life), people have always liked to smell nice.
Organized social lifestyle of insects In today's world, there is a climate of disorder, instability, and unrest. The unfortunate thing is that this kind of behaviour can be seen in humans
The fluttering of butterflies has long been a dilemma for scientists. Researchers have had a hard time understanding how this fragile body flies with its large but insufficient wings.