Boston: Woolly mammoths - or, at least, animals with very similar DNA - could be brought back from extinction within two years, say scientists behind a ground-breaking resurrection project.

The amount of oxygen in oceans around the world has declined, a long-predicted result of climate change, scientists have revealed.

China has ordered an investigation after online images showed officials holding a lavish banquet of meat from the endangered pangolin, the most trafficked mammal on earth.

Meet Taronga Zoo's newest addition  - one of the world's tiniest and rarest primates, a mohawk-sporting baby cotton-top tamarin.

An adorable baby red panda who suffered horrific neck injuries has a second lease on life thanks to a cuddly toy and a Sydney zookeeper.

It was a tough call as to who had the more enviable job. The answer depended which end of a large and potentially dangerous predator you would rather be working on: the head (read canine teeth) or the tail (read anal gland).

• COMMENT

Growing up in Pakistan, my favourite show was Flipper. Living in a city a thousand kilometres from the nearest ocean, it was the most I knew about our beautiful dolphin friends.

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If you want to save an elusive porpoise from being wiped out forever, why not try a team of dolphins, specially trained by the US Navy to detect undersea mines?

He was quite the catch: young, good looking and fit. Spotted lounging in a tree not far from the edge of a road, this koala was a welcome addition to a study which hopes to shed light on why the Somers koala population is in decline.

To the uninitiated they don't look like much to get excited about. Perhaps the only intriguing thing is that their bulbous bodies are a milky-white, rather than dark brown or black. But these tadpoles are special.

China has announced that it was banning all commerce in ivory by the end of 2017, a move that would shut down the world's largest ivory market and could deal a critical blow to the practice of elephant poaching in Africa.

Opportunistic whales have forced researchers to reconsider whether long-line fishing in Australia's southern waters is as eco-friendly as first thought.

Numbers of migrating birds travelling from the Arctic to Botany Bay are dwindling.

Taronga Zoo opens Squirrel Monkey Jungle Walk

The tallest species on the planet is much rarer than previously understood.

Venom from two iconic Australian species could be behind the development of new treatments for diabetes, which affects around 1.7 million Australians.

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The baby pygmy marmoset stolen from a Helensburgh wildlife park has been found, but Gomez and Sophia are still missing.

• UPDATED

The baby pygmy marmoset stolen from a Helensburgh wildlife park has been found, but Gomez and Sophia are still missing.

Pauline Hanson is copping flak for taking her senators to a healthy part of the Great Barrier Reef in an effort to disprove claims the icon is dying.

The skeleton of a dodo has been sold at auction to a private collector for £280,000 ($560,000).

Like the thousands of waterbirds he tracks every year, Professor Richard Kingsford migrates annually to NSW's Macquarie Marshes to witness a "great sight of nature: tens of thousands of waterbirds breeding in wetlands".

A man has attempted to throw a net over Premier Mike Baird as tensions boiled over in Ballina after the installation of the first shark nets in the region.

Alison McKenzie, the wife of a slain environmental investigator Glen Turner, says she is worried the Baird government's new land-clearing laws won't resolve the circumstances that led to his death.

Frog calls that greeted researchers after the 2009 Black Saturday bushfires were robust in number. But genetic testing has revealed they are alarmingly limited in diversity, catching researchers on the hop.

A pregnant Baw Baw frog, found high on a muddy mountaintop could be the key to a successful captive breeding program for the seriously endangered animal.

The Baird government is on the cusp of "gutting" environment protection in the state, opponents say.

Divisions within the Baird government over its controversial native vegetation reforms are emerging, with a Liberal MP Bruce Notley-Smith warning they could trigger "further irreversible land degradation".

Taronga Western Plains Zoo in Dubbo has trumpeted its credentials as a conservation centre by announcing the birth of its first Asian elephant calf.

Baird government's decision to back a trial of shark nets "not based on data".