Population numbers may drop as a result and in many cases cause the extinction of a species.

Do we have the right to cause the extinction of species?

Within a decade they had caused the extinction of five bird species.

Studies have shown that even light hunting on large animals can cause extinction.

They have caused the recent extinction of many marsupial species.

They can also flood various ecosystems on land and may cause extinctions.

It caused the extinction of at least three species.

AN asteroid colliding with the earth could cause the extinction of our species.

What about the single asteroid impact that may have caused the extinction of the dinosaur?

Catastrophism, which says that a single event or a series of events caused the extinction.