7 continents of the world: The Earth consists of 71% and 29% of landmasses. These land masses are further divided into continents. The complicated geological process of plate tectonics led to the ...

Disregard what you learned in geography class—Earth may not have seven continents after all. From the earliest of grades, schoolchildren around the world have memorized the same lineup: Africa, ...

Beneath the continents of the world lies a hidden network of caves that function like isolated ecosystems, similar to islands ...