The term "extinction" refers to the complete loss of a species from the planet. When a species becomes extinct, it can no longer reproduce or survive in its environment, often due to changes such as habitat destruction, climate change, or overexploitation by humans. Extinction has significant ecological consequences, disrupting ecosystems and biodiversity. It reduces genetic diversity and can have cascading effects on interdependent species. Understanding extinction trends is critical for conservation efforts, as well as for maintaining ecological balance and ensuring the survival of vulnerable species.