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…
What is frost and its main signs?
What is frost? So what is frost and its main signs? Frost is a type of solid precipitation.…
Different food cultures
Different countries have different food cultures – why is that? Food is not only about satisfying physiological needs,…