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Extinction is caused by both.
If there is a natural disaster, it can wipe out whole species. For example, climate changes such as the end of the ice age. There were some mammals that evolved into animals we know today and there were some that could not evolve fast enough and did not survive.
Man can cause extinction by over-hunting animals or destroying their habitats.
For example, the Dodo was a flightless, defensive bird which stood no chance when man colonised their island.
What else can I help you with?
Why do you think most extinction's occur as background extinctions?
Most extinctions occur as background extinctions because they are longer time periods unlike the shorter mass extinctions which there were only two in the Paleozoic era, the Ordovician mass extinction, and the Permian/Triassic extinction in which 95% of all marine animals became extinct
How did they get extinctions?
When all of that species of animal dies and there is none left in the world.
Was petra man made?
All buildings are man made.
Can someone tell you about why is Ceylonese or Ceylon Pythons endangered?
it's not a very difficult question.all extinctions are done by man.
Is leather furniture man made?
All furniture is man made.
What is the animal group with the most extinctions?
invertabates are the animals with the most extinctions
Is Venice a man made floating city?
All cities are man made
Is Boston natural or man made?
Boston is a city- buildings, streets, bridges- all man made. Boston Cream Pie is a dessert- also man made.
Was Hollywood man made?
It is a city and all cities are man made, so yes.
Is Sydney a man made city?
We invite the questioner to list all the cities that are not man made.
What was the outcomes of each of the mass extinctions?
The outcomes of each of the mass extinctions is that animal and/or bacteria die.
Do scientists believe that extinctions are uncommon?
No, they are fundamental to the process of evolution. Mass extinctions are less common.
