About 60 per cent of monkeys, apes, lemurs, lorises and tarsiers are threatened with extinction. Climate change will only make it more difficult for them to survive.
For phascogales, tree hollows are getting harder to find. I venture into forests and study how well artificial hollows made with chainsaws can replace them.
What can gardeners use that isn't so bad for the climate?
A new review of the status of African elephants finds scientific grounds for dividing them into two species, and reports that both have suffered drastic population declines since 1990.
The last time a specimen was collected was in 1923.
Britain's native amphibians are in steep decline thanks to wetlands disappearing and ponds drying up.
Food farmed in tropical and Mediterranean climates comes at a higher cost to biodiversity than that grown elsewhere.
The world missed all 20 targets for stemming the tide of biodiversity loss. But there has been some progress over the last decade.
Maerl beds are the coral reefs of the British Isles. But like their tropical counterparts, they're threatened by climate change.
A conservation scientist interviewed on the programme says Sir David tells it like it is.
The coconut – an icon of unspoiled tropical idylls – causes more environmental harm than many people realise.
Some threatened species hit hard by the bushfires this summer have populations in and around urban areas, which are now crucial refuges. Here are some tips to help improve their odds of survival.
The current state of our climate shouldn't be dismissed as a 'new normal'. The hard truth is many of our ecosystems will not recover from the damage.
There are 60,000 abandoned mines in Australia. How do we restore them so that animals return? A researcher's epic fieldwork project in WA's Mid West could help provide the answers.
The Earth has experienced five periods of mass extinction. Scientists can't quite be certain yet, but they're fairly sure we're now well into the sixth.
Aside from their intrinsic value, common bird species might be one of the only ways we connect with nature in our everyday lives. But these opportunities are under threat.
A staggering 7.7 million hectares of critical habitat has been destroyed since environment laws were enacted - and 93% was not referred to the federal government for assessment.
Doug Ford's government is undercutting the environment by giving business and development the upper hand.
Studies show that West Africa's critically endangered chimpanzees are finding ways of adapting to their rapidly changing habitat, but they still remain highly at risk.
Just one out of a possible 775 development approvals was refused on the basis that it would harm the southern black-throated finch, despite this endangered species being protected by federal law.