"Endangered" refers to species that are at risk of extinction due to various factors, including habitat loss, pollution, climate change, and overexploitation. These species are often classified into categories such as vulnerable, endangered, and critically endangered, depending on the severity of their risk. Conservation efforts aim to protect endangered species and their habitats through laws, protected areas, and breeding programs. Organizations like the World Wildlife Fund and the International Union for Conservation of Nature work to raise awareness and implement strategies to prevent extinction and promote biodiversity.