The largest forest in the world is the Amazon Rainforest, which spans across several South American countries, including Brazil, Peru, Colombia, and Venezuela. Covering approximately 5.5 million square kilometers, it is not only the largest tropical rainforest but also one of the most biodiverse ecosystems on the planet. The Amazon is home to millions of species, including countless plants, animals, and insects, many of which are not found anywhere else. Furthermore, the Amazon plays a critical role in regulating the global climate by absorbing carbon dioxide and producing oxygen, making its conservation vital for environmental health.