Quote:

Chinese researchers have declared two gibbon species extinct because they have not been spotted in their southern China habitat for more than a decade. Key points: A species classified as "extinct in the wild" is now found only in captivity The population of the white-handed gibbon has declined steadily due to habitat loss, hunting and pet trading Both species could be found in the south-western Chinese province of Yunnan A report into the status of endangered primates in China, released on Tuesday, says the white-handed gibbon and the northern white-cheeked gibbon are classified as "extinct in the wild", according to Chinese state media. Extinction in the wild means the species is only known to survive in captivity. Researchers surveyed areas where the white-handed gibbons and northern white-cheeked gibbons used to live but found no sign of the animals. Head of the survey team at the Northwestern University of China, Li Baoguo, told local media that habitat loss, over-exploitation of resources and expanding agriculture were the leading causes of the species' declines. "Human activities are the root cause of the unprecedented loss of biodiversity, and this has led to a serious survival crisis for primates," Mr Li said.

https://www.abc.net.au/news/2022-09-07/two-gibbon-species-declared-extinct-in-the-wild-in-china/101414080

Ecosystems are continually being degraded even tho our existence relies on the servives of ecosystems. Then add AGW.

Former Chief Commissioner of the Climate Commission, Professor Tim Flannery
has claimed that "Megafauna was killed off quite quickly by the Aborigines when
they arrived in Australia sometime between 40,000 and 60,000 years ago".  And
"The Australian landscape was changed by the impact of huge uncontrolled fires,
a direct consequence of the build up of uneaten vegetation, following the demise
of the megafauna".

This report by scientists disagrees with these claims on several fronts.

"Taming the Fire - Hypotheses"

More likely it was climate change, ending of the major ice age.

Jovial Monk wrote on Sep 9^th, 2022 at 3:13pm:

More likely it was climate change, ending of the major ice age.

Yes.  Seems most of the science points to climate change as the main
driver of fauna extinction.  The consensus seems to be that with their
primitive weapons at the time, there'd be little chance of the Aborigines
bringing down such large animals, and that massive fires had raged
long before the Aboriginals arrived—explaining the increasing dearth of
edible vegetation as food for the megafauna.