Gray hair. Can stress cause gray hair
What is gray hair? Gray hair is a natural process that gradually begins in most people as they…
Australia: history of discovery and interesting facts
Australia – mainland The entire territory of the mainland is occupied by one country – Australia. Its official…
Flu: Danger and Effective Protection
Colds and flu are caused by a viral infection that affects our respiratory system. It involves the nose,…
The instinct of self-preservation: does it exist?
The instinct of self-preservation is an innate form of behavior of living beings in case of danger, as…
The magpie is an intelligent bird
The magpie, or European magpie, or common magpie, is a bird of the corvidae family. The magpie is…
Snowflakes – are they all the same?
Snowflakes. A snowflake is a single ice crystal or an aggregation of crystals that falls to the Earth’s…