(Many species face multiple threats).
Kangaroos and wallabies are plentiful, but, like many other species, face significant loss of habitat.
The real world is already overcrowded, as thousands of plant and animal species face the threat of extinction.
According to a recent University of Hong Kong study, one in ten grouper species face extinction if current trends aren't arrested.
A recent, comprehensive survey, presented at the same conference as the news of the gorilla census, indicates that more than half of primate species face extinction.
There are more than 6,000 known amphibians and 41% of these species face extinction – a much higher number than mammals (25%) or birds (13%).
Doughty said while the Kimberley is largely inaccessible to people, especially during the wet season, its species face threats from changed fire regimes and feral animals.
William Conway, its retired president, argued that zoos must be seen against the specter of extinction, which so many species face.
The report warns that many species face increased extinction risk as climate change adds to existing pressures such as habitat loss, exploitation, pollution and invasive species.
Because how we view and treat animals isn't "just a cultural debate; our internal biases help to shape the external conditions that other species face".
Generally, he said, "it also recognizes that endangered species face a lot of problems in the Klamath basin, especially warm polluted water.
