"For most of history, man has had to fight nature to survive; in this century he is beginning to...

Marigold shows anti-bacterial and anti-viral properties, which make them special. They grow once...

Animals are part of our natural world. Most of the animal specials are related to humans in...

The history of democracy dates back to ancient Greece, particularly Athens in the 5th century...

Sea lions are pinnipeds characterized by external ear flaps, long foreflippers, the ability to...