Biodiversity hotspots are regions that are rich in unique plant and animal species but are also threatened by human activities. To qualify as a hotspot, an area must have at least 1,500 species of vascular plants as endemics and must have lost at least 70% of its original habitat. These areas are crucial for conservation efforts because they support a high level of biodiversity. Examples of biodiversity hotspots include the Amazon Rainforest, the Madagascar and Indian Ocean Islands, and the Western Ghats and Sri Lanka. Protecting these regions is essential for maintaining global biodiversity and ensuring the survival of many species that are found nowhere else on Earth.