The Earth formed approximately 4.6 billion years ago, according to National Geographic. If the world was captured all those years ago, the land masses would’ve been structured completely different to ...
Hundreds of millions of years ago, a supercontinent called Pangaea formed. For about 125 million years, it contained almost all of the dry land on Earth. Since then, chunks of Pangaea have drifted ...
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Which Continent Has the Most Countries?
The world is divided into seven continents: Africa, Asia, Europe, North America, South America, Oceania (which includes Australia and New Zealand), and Antarctica. Each continent is unique in its ...
Tom has a Master's degree in Journalism. His editorial work covers anything from archaeology and the environment to technology and culture. Tom has a Master's degree in Journalism. His editorial work ...
Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...
Before you submit an error, please consult our Video Help page. World's Greatest Cruises is available to stream on pbs.org and the free PBS App, available on iPhone, Apple TV, Android TV, Android ...
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