The document discusses tropical rainforests. It describes tropical rainforests as dense forests with high temperatures and rainfall that contain a high number of animal and plant species. These species help regulate the planet's climate, water balance, erosion, and extreme weather. Tropical rainforests are located along the equator and contain important forests like the Amazon rainforest. However, tropical rainforests are threatened by fires, agriculture, logging, road construction, and illegal wildlife trafficking. It is important to protect tropical rainforests to preserve biodiversity and global climate stability.