South America is the fourth-largest continent on Earth, connected to North America by the narrow Isthmus of Panama. It stretches from the Caribbean Sea in the north all the way to Cape Horn at its southern tip, near where the Atlantic and Pacific Oceans meet in some of the stormiest waters on the planet.

The continent contains incredible geographic diversity. The Amazon rainforest, the world's largest tropical rainforest, covers much of the northern region and plays a major role in Earth's climate. The Andes Mountains run along the entire western edge, forming the longest mountain range in the world. The continent also includes the Atacama Desert in Chile (one of the driest places on Earth), vast grasslands called the pampas in Argentina, and the Galápagos Islands off Ecuador's coast, where Charles Darwin studied unique species that helped him develop his theory of evolution.

South America is home to about 430 million people speaking mainly Spanish and Portuguese, though hundreds of Indigenous languages survive as well. Twelve countries make up the continent, with Brazil being by far the largest, covering nearly half the land area. The continent gave the world potatoes, tomatoes, chocolate, and rubber, all of which originated there. Ancient civilizations like the Inca built sophisticated cities high in the Andes, including Machu Picchu in Peru, centuries before Europeans arrived in the 1500s.