Perth Zoo has hit back at allegations zookeepers uses 'bullhooks' in order to coerce its Asian elephants into painting their famous portraits.

Biologist Chandler Robbins first placed an aluminium band around her ankle at Midway Atoll in 1956. Wisdom is now the oldest known breeding bird on Earth.

A gusty southerly cool change will bring much-welcomed end to Sydney's record-breaking heat.

Relief from the heat is just hours away after temperature records tumbled overnight.

• COMMENT

When it comes to climate science, President-elect Donald Trump has been a purveyor of conspiracy theories for years.

Tuesday night marked the third hottest December night on record in Canberra since 1940.

A sweaty night that has even bureau staff camping out in tents will make way for another hot day.

Queensland's main bird conservation group has called for a radical re-think of the Queensland Government's $1.3 billion plan to build a new marina and harbor where ferries connect to North Stradbroke Island at Cleveland.

The Arctic saw the warmest temperatures ever recorded in 2016, according to an annual report released Tuesday by the National Oceanic and Atmospheric Administration.

Report reveals the growth rate of renewable energy jobs in the ACT is six times higher than any other state or territory.

For those wondering "when will this end", Melbourne's steamy conditions won't come to a close until about midnight.

A litter of six meerkats was born on last Wednesday at Sydney's Taronga Zoo, a record for the zoo.

Next time you're lying on the beach soaking up the rays, spare a thought for the sun-loving algae hiding in the sand grains beneath you.

A record warm December night is in prospect as sea breezes remain weak.

In what could be the ultimate accolade by Harry Potter fans, Indian arachnologists have named a creepy new spider after the famous sorting hat which belonged to Godric Gryffindor, one of the founders of Hogwarts. 

Atop the ice sheet covering the Arctic island of Greenland, you now see dramatic melting in the summer. It forms lakes, rivers and even dangerous "moulins" in the ice where rivers suddenly plunge into the thick ice sheet, carrying water deep below.

Conditions are about to turn a lot less bearable in the Harbour City.

Rafting through a rugged sub-Antarctic landscape, surrounded by colonies of penguins frolicking and playing in the water: this is the immersion that Sydney Aquarium is offering in a world-first experience.

• UPDATED

Two new wind farms that be built in NSW next year will power 90,000 ACT homes with renewable electricity.

A 10-fold rise in methane emissions rings fresh alarm bells on the climate front.

Melbourne and most of the country's south-east are in for a sweaty few days as a hot air mass sweeps across southern Australia.

A giant barnacle-covered shape that washed up on Auckland's Muriwai Beach has locals scratching their heads.

Sydney and most of the country's south-east are in for a sweaty few days as a hot air mass sweeps across southern Australia.

Southern Australia is likely to get its biggest blast of heat since last summer.

It takes a discerning ear to pick an out of place insect call on a evening stroll through the bush.

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

• EXCLUSIVE

The Turnbull government is sitting on advice that an emissions intensity scheme would make electricity bills cheaper.