The main cause of biodiversity loss is habitat destruction, often due to human activities such as deforestation, urbanization, and agricultural expansion. These activities fragment ecosystems, making it difficult for species to thrive and reproduce. Additionally, factors like climate change, pollution, and overexploitation further exacerbate this loss. Biodiversity loss leads to decreased ecosystem resilience and functionality, threatening both wildlife and human populations. Addressing habitat destruction and implementing conservation strategies are crucial for reversing trends in biodiversity decline and fostering sustainable practices.