An asteroid from space, volcanic eruption, flooding, loss of food, or drought.
Tornadoes, volcanic eruption, temperature changes, and habitat destruction can all cause extinction.
what is important of events
Extinction events, such as the Permian extinction and the KT extinction event. You have adaptive radiation driving evolutionary change after such events. Google " the rise of the mammals. "
They are the end-Ordovician extinction, end-Devonian extinction, end-Permian extinction, the Triassic extinction, end-Cretaceous extinction.
Usually, they represent periods between extinction events, where a particular type of lifeform was dominant.
Because - previous extinction events happened due to natural causes. Over the last 200 years, the human race has wiped out more species through their selfish domination of the planet - than the last 20,000 years of 'natural' disasters !
Extinction events, such as the Permian extinction and the KT extinction event. You have adaptive radiation driving evolutionary change after such events. Google " the rise of the mammals. "
There are many reasons why the wild life of the Philippines is going extinct. The main causes of extinction are deforestation and poaching.
the mass extinction
There were five major extinction events in the past. They are called the Cretaceous-Tertiary (or K-T) extinction event, the late Devonian mass extinction, the Permian mass extinction, the Ordovician-Silurian mass extinction and the Triassic-Jurassic mass extinction event.
The two main causes of the near-extinction of the bison were 1. Habitat loss from ranching and farming, and 2. Commercial hunting.
Each era on the scale is separated from the next by a major event or change. Different spans of time on the time scale are usually delimited by major geological or paleontological events, such as mass extinctions.
The main cause is: HUMANS