sukupuuttotapahtumat
Sukupuuttotapahtumat, also known as mass extinctions, are significant and widespread decreases in the biodiversity of Earth. These events are characterized by a large number of species disappearing over a relatively short geological timescale. Scientists identify these events through fossil records, observing abrupt declines in the variety of life forms.
Several factors can trigger mass extinctions. These include catastrophic events like asteroid impacts, massive volcanic activity
Earth's history has been marked by several major mass extinction events. The most famous include the Permian-Triassic