What and why

There are five oceans on Earth: the Pacific, Atlantic, Indian, Southern, and Arctic Oceans. Previously, it was believed that there were only four, but in 2000, the...

Currently, there are 44 officially recognized sovereign states in Europe. However, this number can vary depending on which territories and regions are considered. For...

There are 8 planets in the Solar System. They are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Until 2006, Pluto was also included in the list of...

Banana is one of the most popular fruits in the world, which is also famous for its beneficial properties. But when calculating the calorie content of the diet, it is...

On average, goats live between 10 and 15 years, but with proper care, some individuals can reach 18–20 years. Their lifespan depends on breed, living conditions, diet...

How Long Do Monkeys Live? On average, monkeys live between 10 and 50 years, depending on their species, habitat, and living conditions. Small species, such as...

On average, hamsters live from 1.5 to 3 years, but their lifespan depends on their breed, living conditions, and health. Some species, like Syrian hamsters, can live up...

Surely, every person has noticed that their eyelashes fall out periodically. This is a natural cycle that includes their renewal. But it is important to understand when...

A twitching eye or myokymia is an involuntary twitching of the eyelids, which can be temporary or long-term. Usually this phenomenon is harmless, but in some cases it...

The sky appears blue due to the scattering of sunlight in the Earth's atmosphere. As sunlight passes through the air, gas molecules scatter the light. Short-wavelength...

The sea appears blue because sunlight, when entering the water, refracts and scatters. The wavelength of blue light is shorter than that of red light, which means blue...

Seawater is salty because it contains dissolved salts, primarily sodium chloride (common table salt). These salts enter the oceans and seas through natural processes...