Conservation

Earth has 3 trillion trees - but billions disappear annually

Tom Arup 1:35 PM   New research estimates there are 3 trillion trees on Earth, significantly more than previously thought, but humans are removing 15 billion a year.

Kangaroo exporters, Canberra accused of dirty tricks in California

Representative Mike Gipson, with a kangaroo and joey brought to the California state house.

Nick O'Malley 10:30 AM   US animal-protection group is hopping mad at efforts to permanently end a ban on imported kangaroos.

Feral deer taken out in Parks Victoria cull

Feral deer cause substantial environmental damage.

Darren Gray   As deer numbers rise, organised culls are essential to protect our national parks.

Three great whites seen at North Coast shark attack zones

A large shark photographed by Air T&G near South Wall at Ballina on August 1, just  days after the attack on Craig Ison at Evans Head  about 20 kilometres to the south.

Rory Callinan   Great white sharks return to scene of deadly attacks in Northern NSW over the weekend

Hard to find handfish needs keeping in hand

Handfish in hand. Sitting on a diver's glove is one of the world's most endangered fish.

Andrew Darby   Scientists are considering a captive breeding program to ensure the survival of an enigmatic little sea floor walking fish found only in Hobart's Derwent estuary.

Robot reveals beauty of Wilsons Prom marine park

The $120,000 robot used in the waters of Wilsons Promontory Marine National Park.

Darren Gray   Beautiful corals, stunning sponge gardens, vast numbers of fish and "needles of rock" that soar towards the water's surface.

Joint action by Australia and Indonesia to curb illegal fishing hailed

A satellite image by DigitalGlobe showing two fishing trawlers beside the cargo ship Silver Sea 2 in July.

Bridie Smith   Intergovernmental effort not only resulted in intercepting poachers, but also raised awareness that is likely to endure.

Landowner charged in the killing of lion Cecil

Zimbabwean safari operator Trymore Ndlovu, right, and fellow countryman and hunter Theo Bronkhorst waiting to appear in Hwange magistrates court last month.

A Zimbabwean court has charged a man on whose land a US trophy hunter killed an iconic lion, his lawyer said on Wednesday.

Cecil the lion's killer reopens practice

Protesters outside Walter Palmer's dental office in Bloomington, Minnesota.

The dental practice of a Minnesota man who killed a well-known lion in Zimbabwe has reopened.

Man attacks shark as deadly hunt threatens species

A thresher shark swims in the Philippines.

Bridie Smith   About 100 million sharks are killed around the globe annually, caught by human predators.

The Adani myths busted

Prime Minister Tony Abbott during question time on August 18.

Lisa Cox   When it comes to Australia's largest coal mine, the Abbott government has a difficult relationship with the truth. If you haven't heard, Australia is under siege from a new kind of eco-warrior, one with a manual and money for legal challenges designed to endlessly frustrate economic development.

The koala and the quad bike

The koala chases Ebony Churchill's quad bike.

Michael Koziol   They are mythologised as cute and cuddly - but one koala's "very unusual" behaviour has shown the animal's scary side.

NSW to announce campaign for sharks

A gigantic, four-metre tiger shark, shown in Facebook photos, was reportedly caught off Nine Mile Beach, on the Tweed Coast, in the past few days.

The NSW government is set to announce new measures to reduce the number of shark attacks on the state's beaches.

Giant tiger shark reportedly caught off NSW North Coast

A gigantic, four-metre tiger shark, shown in Facebook photos, was reportedly caught off Nine Mile Beach, on the Tweed Coast, in the past few days.

Rachel Olding   Conservationists are investigating the possibility that a gigantic, four-metre Tiger shark was caught off the NSW coast this week by a commercial fisherman.

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New species of glider discovered in the Northern Territory

Something new: Professor Sue Carthew says there is much work to do before the glider species can be identified.

Lucy Cormack   Researchers in the Northern Territory believe they have found a new marsupial species, and the process of identifying it could take them all the way to the British Museum.

Surfers call for North Coast shark cull

SHARK FIN FROM ISTOCK

Rachel Olding   Surfers on the NSW North Coast have overwhelmingly voted for a partial cull of sharks following an unprecedented number of attacks and sightings along the world-famous coastline.

Stripes 'don't save zebras from predators'

Zebras are easily identifiable targets, despite their stripes .

A zebra's stripes are unlikely to protect it from pursuing predators, contrary to the view of most experts, research has shown.

Snail study suggests Earth may have already lost seven per cent of its species

Hawaii: "The extinction capital of the world."

Robert Gebelhoff   Officially, only 800 of Earth's species are extinct. This study puts the number closer to 180,000.

Orphaned rhino calf cuddles up to tourist's grey car

A baby rhino, named Donnie, was spotted cuddling up to a grey car after poachers killed his mother in the Kruger National Park, South Africa.

A prosecutor in South Africa's Kruger National Park says rhino poaching cases appear in court like shoplifting cases in the city. South Africa is on track to see another record year of rhino poaching with 393 rhinos killed in the first four months of 2015.

Slimy, scaly, spotted, furry, feathered, flying brakes on development

Habitat loss is endangering the survival of many species, including the koala.

Catherine Armitage   It might be a children's fairy tale, but for Adani Mining and the federal Environment Minister Greg Hunt, it's all too true. A lovely little lizard and a small, scaly snake stopped a $16 billion coal mine.

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Nine hundred giant native trees felled in VicRoads planning blunder

The Western Highway project

Adam Carey   Almost 900 towering old native trees have been felled in error in western Victoria after VicRoads severely misjudged the environmental impact of a highway project it is managing.

As trial in killing of Cecil the lion is postponed, hunters defend profession

Theo Bronkhorst talks to media outside the Hwange court.

Kevin Sieff   When the guides who helped an American hunter kill Cecil the lion last month sat in a Zimbabwean court on Wednesday morning, it was the most high-profile case against illegal hunting in the country's history.

Florida home of dentist who killed Zimbabwe lion vandalised

Killed by dentist: Cecil the lion.

Vandals spray-painted "lion killer" on a tony Florida vacation home that is owned by an American dentist who killed Zimbabwe's best-known lion, authorities said on Wednesday.

Cecil the lion's brother shot and killed by hunter in Zimbabwe, park source

Shot dead: Cecil the lion

The brother of beloved Cecil the lion was shot and killed on Saturday by a hunter, a conservation group claimed.

Wilsons Promontory National Park to close for three days in August, as hunters target feral deer

Hog deer at Wilsons Promontory National Park

Darren Gray    One of Victoria's most popular national parks, Wilsons Promontory National Park, will be closed for three days in August as shooters target feral deer that are damaging the park.

US probes killing of lion Cecil, UN resolves to tackle illicit hunting

US dentist Walter Palmer has gone silent in the wake of the global outcry over the hunt.

Peta Thornycroft, Harriet Alexander   The man who shot Cecil the lion wanted to bag a giant elephant after killing the protected big cat - but was unable to find one large enough for his liking, his guide has disclosed.

Hunter wanted to kill an elephant after shooting Cecil the lion

Zimbabwean safari operator Honest Ndlovu, right, and fellow countryman and hunter Theo Bronkhorst waiting to appear in Hwange magistrates court.

Peta Thornycroft, Harriet Alexander   The man who shot Cecil the lion wanted to bag a giant elephant after killing the protected big cat - but was unable to find one large enough for his liking, his guide has disclosed.

Rich American tourists kill hundreds of lions each year, and it’s all legal

Hunter Walter James Palmer, left, with another lion he killed.

Christopher Ingraham   The internet is in an uproar this week over the recent killing of a well-known lion in Zimbabwe. Walter Palmer, a Minnesota dentist, allegedly baited Cecile the lion out of a national park by dragging a dead animal behind a car at night.