Whether in a desert, the savanna, or a tropical rainforest, plants have an important role in the ecological processes of Earth’s biomes. In this episode of Crash Course Botany, we’ll explore these ...

The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth. Huge volcanoes erupted, releasing 100,000 billion metric tons of carbon ...

Discusses the tundra biome, highlighting its extreme climate characterized by low temperatures and a short growing season. It describes the unique adaptations of tundra wildlife, such as the muskox ...