Fault-block mountains are formed as a result of stresses in the earth’s crust caused by tectonic forces that lead to the fracturing and movement of rock masses along fracture lines.
Those lines are called faults.
Most known mountains of this type are Sierra Nevada in California, the Tetons in Wyoming and Harz in Germany.
In 2011, researchers discovered two new species of freshwater stingrays in the Amazon River.
The Heliotrygon (rosai and gomesi), commonly referred to as the Pancake stingrays, is the first new genus of stingrays from the Amazon described since 1987.
We have only an approximate idea of the size of Nan Madol, the full size of this city was hidden for centuries by the mangrove forest.
The entire city area was protected by a coastal band, behind which were islands that formed the necropolis and residential settlement, as well as temples and monuments that symbolized power.
