It's the largest number needing to be killed or adopted since 1997.
Tracks in Goldie Bush Scenic Reserve are closed in support of the rāhui placed to protect kauri in the Waitakere Ranges.
The programme has supercharged efforts to repopulate central West Coast rivers with the native blue duck.
Think bottled water is purer than tap water? A new study's found just the opposite.
It's hoped tracking the birds' journey from NZ to the ocean will shed some light on the situation.
A community action group has now launched legal action, saying it puts the city's water supply at risk.
But the environmentally friendly 'family cloth' has provoked a strong reaction on social media.
It is known to transmit diseases such as Ross River virus and Kunjin virus.
Residents say the ants are a "major threat" - and they're preparing for war.
Six-hundred of the bugs were found on a ship anchored near Auckland.
The Bags Not initiative aims to stop the environment being a dumping ground.
200 samples reveal how the planet's climate has changed over millions of years.
Scientists, health professionals and unions want the Government to take action on climate change.
It's expected this year's survey will reveal some "pretty pathetic" glaciers.
Fish that usually live in Tonga could be on their way to New Zealand.
The virus could reduce the region's rabbit population by 40 percent.
Environment Cmmr Simon Upton urges Parliament to stop the "on again, off again" approach.