North and South America were arranged in nearly the same positions as they are today as far back as 20 million years ago. A significant difference was that they were separated by a deep open channel called the Central American Seaway.
One of nature’s most basic and subtle shapes is the winding, back and forth S-curve of a meandering river.
In rare circumstances, Antarctic ice can appear blue.
An ecological niche is the set of conditions that allows a species to maintain its population.
Zealandia, off the eastern coast of Australia, has existed for millions of years.
It was one of the Earth's momentous times. Continents collided. Volcanoes erupted. Ocean currents shifted. Species ran amok.
The song says that Bonnie lies over the ocean, but it also says that she lies over the sea. Based on these lyrics, where is Bonnie?
A Moment of Science would like to clarify a small point of navigation: the difference between a mile on land and a nautical mile.
More often than not, the wind dies down at night after a blustery day. Where does the wind go? Why are nights generally more calm than days?