mass extinctions

Mass extinctions are events where a significant percentage of Earth's species disappear in a relatively short period. These events often result from dramatic changes such as volcanic eruptions, climate shifts, asteroid impacts, or severe environmental disruptions. The loss of many species at once reshapes ecosystems, paving the way for new forms of life to evolve. Historically, Earth has experienced five major mass extinctions, each profoundly influencing the course of life's development. These events highlight the planet's dynamic nature and the vulnerability of life to large-scale environmental changes.