What is extinction?
"When is it considered an endangered species? A species is considered to be in danger of extinction when all its representatives run the risk of disappearing from the face of the Earth"
Extinction is the total disappearance of a species on the planet. During the long history of the planet there have been many extinctions caused by climatic changes, volcanism, floods, droughts. However, in recent years the vast majority of flora and fauna extinctions are due to the direct or indirect impact of human activities
