Environment
Killing season: Crisis time for Africa's famed wildlife
The “Big Five” – lions, elephants, rhinoceros, leopards and Cape buffalo – have never been in greater peril.
- by Greg Callaghan
Latest
Foreign aid
'Blessed': Tree regeneration pioneer Tony Rinaudo gets global gong
An Australian credited with creating a technique that has helped reforest millions of hectares of degraded land globally has won the 'Alternative Nobel Prize'.
- by Peter Hannam
Waste
Opera House goes carbon neutral five years ahead of schedule
At 6pm on Monday night, look to the Sydney Opera House for a symbol of change .
- by Helen Pitt
Water
'First salvo': Lines drawn as battle over raising Warragamba Dam begins
A multi-year battle over the potential flooding of parts of the Blue Mountains World Heritage Area has begin – even if prospects of a near-term flood are low.
- by Peter Hannam
Drought
Paving the way for a perfect courtyard
With smaller gardens often comes less privacy. The remedy, says Jackie French, is to create a courtyard that provides peace and tranquility.
- by Jackie French
Recycling
How to use Queensland's new container recycling scheme
Queensland's new container recycling scheme begins on November 1. Will it be ready? And how will you claim your 10-cent refund.
- by Tony Moore
Wildlife
How fire could unlock suburbia's 'hidden treasure' of wildflowers
Conservation workers say they have discovered a wildflower never before recorded in Melbourne's suburbs – and predict it could be the tip of a botanical iceberg.
- by Joe Hinchliffe
Science
This is what happens to a shy octopus on ecstasy
A neuroscientist and an octopus expert Eric Edsinger bathed octopuses in the psychedelic drug and observed the results.
- by Ben Guarino
Animals
Scientists crack genetic code of cane toad
Researchers have used the toad's genetics to find three new viruses that, with further work, may become biocontrols to stem the toad's march across the country.
Animals
Texas mayor, 73, kills huge alligator she thinks ate her miniature horse
A miniature horse vanished a few years ago from Judy Cochran's Texas cattle ranch. On Monday, she fired one shot to kill what she says was the likely perpetrator.
- by Karin Brulliard
Shocking video shows man running down emus
A man filmed himself hitting several emus with a vehicle and laughing about it afterwards. Warning: Disturbing content.