Assertion: extinction | /r/HasProperty | natural phenomenon
Facets:
Source sentences:
text: Extinction is a natural phenomenon: After all, more than 90 percent of all organisms that have ever lived on Earth aren’t alive today.
text: It is important to note that extinction – the permanent loss of species – is a natural process that is counterpoint to speciation, the creation of new species through evolution.
text: Extinction is a natural part of evolution, having already claimed an estimated 99 percent of all species in Earth's history.
text: If extinction is part of the natural order, why save endangered species?
text: extinction is a natural biological process”.
text: Extinction is a natural phenomenon: After all, more than 90 percent of all organisms that have ever lived on Earth aren’t alive today.
text: Extinction is a natural phenomenon; it is estimated that 99.9% of all species that have ever lived are now extinctTemplate:Ref.
text: Although extinction is a natural phenomenon, it occurs at a natural “background” rate of about one to five species per year.