Biomes of the World

Desert biomes receive little or no precipitation. Many receive fewer than 10 inches (250 millimeters) of precipitation each year. Find out more in Deserts, one of the titles in the Biomes of the World series.

Deciduous forests are found across North America, Europe, and parts of China and Japan. Most deciduous forests are located in places with moist and mild climates. Find out more in Deciduous Forests, one of the titles in the Biomes of the World series.

Wetlands cover an area of more than 4.7 million square miles (12 million square kilometers) around the world. Every continent except Antarctica has wetlands. Find out more in Wetlands, one of the titles in the Biomes of the World series.

Rainforest biomes are home to at least 30 million plant and animal species. That is more than half of all life on Earth. Find out more in Rainforests, one of the titles in the Biomes of the World series.

The boreal forest stretches 47 billion acres (1.9 billion hectares) across the northern part of the globe. It is the largest land-based biome on Earth. Find out more in Boreal Forests, one of the titles in the Biomes of the World series.

Caves lie beneath the ground of every continent in the world. Cave systems extend for great distances and to extreme depths. Some caves can even be found beneath towns and cities. Find out more in Caves, one of the titles in the Biomes of the World series.