Just don’t say so to his face.
Declining numbers mean the continent's top predator isn't fulfilling its ecological role.
While ecotourists enjoy the warm waters of the Cuiaba River in Brazil, our presence in natural areas like this may have unanticipated costs for local wildlife.
We often think of ecotourism as good for the environment. But it may have some worrying unintended consequences for wild animals.
Squirrel gliders aren’t at risk, and hands-on conservation can keep them that way.
David M. Watson
We're familiar with the idea of releasing almost-extinct species into new areas. By doing the same with common animals, we can help stop their population numbers getting into the same perilous state.
Koalas are again in the firing line. But should diseased animals be culled for the greater good?
Research has shown that culling koalas could help stop the spread of deadly chlamydia. But how open will Australians be to killing one our favourite animals?
It’s high time we gave Australian wildlife a helping hand.
AAP Image/Sam Mooy
A 21st century government would put the environment on at least an equal footing with the economy. That means no more extinctions, and no more putting ourselves before wildlife or future generations.
Darren Whiteside / Reuters
People living in their forests must be on board too – and they don't always subscribe to Western conservation values.
Hadi Wijoyo / EPA
Indonesia could manage without its rhino, unlike African countries which rely on safari dollars.
Conservationists claim the combination of GPS tracker, heart-beat monitor and spy camera will be a game changer.
Chris Packham: defends badgers, irritates lobbyists.
The BBC presenter has annoyed some charities, but he's a well-informed insider with some good points to make.
Thylacines are extinct - and perhaps we just have to accept it.
Many ecosystems have changed so radically that it is no longer possible to restore them to what they once were and in other situations it is not appropriate.
Wombat mange is a debilitating disease that can lead to blindness and death.
Wombats are suffering from mange, a deadly skin condition that threatens to wipe out some local populations. Frustratingly little is known about the problem, so we need a national plan to tackle it.
Gorillas in the wild: better than a zoo.
The fortunes of the world's remaining wild gorillas is linked to prosperity in the places where they live - hence the high price of tourist permits. But with economic development comes economic threats too.
The debate on whether animals should be kept in captivity or not continues to rage on.
Some say that keeping wild animals in captivity is cruel. Others believe they promote conservation and give people a link to nature.
Gamba Grass is altering fire regimes in the Top End, threatening human life and property, natural assets including Kakadu and Litchfield National Parks, and compromising savanna burning programs.
One of the Australian government's new research priorities is "environmental change". But can be hard to know how to tackle such huge and interlinked issues as climate change and species extinctions.
Grey squirrels hate these reclusive, cat-sized predators.
If genetics are not considered when translocating lions, their evolutionary line could be affected.
Genetics need to be considered when relocating lion populations because they a play a role in the animals' evolutionary line.
This furry critter could help save plenty of others, if given the chance.
Chen Wu/Flickr/Wikimedia Commons
If we brought devils back to the mainland, they could play a similar role to dingoes - keeping foxes and cats under control and potentially boosting the conservation prospects of Australia's small mammals.
People in the Ruaha landscape lose their livestock as a result of predator attacks.
Human and wildlife conflict in Tanzania's Ruaha region is extremely tense. There are many projects underway to alleviate this tension.
No trophy hunters that way … or that way.
The latest trophy hunting furore should at least raise the profile of Africa’s forgotten megafauna.
Cute – but not actually endangered.
The UK has few endemic and endangered species. Wildlife protection is easier and more important elsewhere.