Helen Briggs: Human impact on nature 'dates back millions of years
Early human ancestors
living millions of years ago may have triggered extinctions, even before our
species evolved, a study suggests. A decline in large
mammals seen in Eastern Africa may have been due to early humans, researchers
propose. Extinction rates
started to increase from around four million years ago. This coincides with
the period when ancient human populations were living in the area, as judged by
fossil evidence.
"We are now
negatively impacting the world and the species that live in it more than ever
before. But this does not mean that we used to live in true harmony with nature
in the past," said study researcher, Dr Søren Faurby of the University of
Gothenburg. "We are extremely
successful in monopolising resources today, and our results show that this may
have also been the case with our ancestors."..
https://www.bbc.com/news/science-environment-51068816