Now 72 percent of native fish are considered threatened with extinction.
A scientist's proven how effective the creature is at camouflage, posting a photo which has stumped the internet.
The answer to the world's plastic peril could be a humble caterpillar - and the discovery was a complete accident.
Its creator says farmers, not politicians, control the fate of our rivers.
Scientists say it may cost the world between NZ$10 trillion and NZ$128 trillion this century.
This past winter, temperatures have soared 10degC higher than usual.
It suggests pollen may be a food source for some deep-sea organisms.
The Slims River flowed the same way for 300 years, now it's a victim of climate change.
A massive iceberg around 5000 square km threatens to crack off.
Isobel Ewing wonders if the opposition is ideological rather than based on facts and evidence.
Bottled water is a booming industry but it's terrible for the environment - so one company came up with a way to fix it.
Little cameras attached to the whales provide a unique view into their habits.
DoC is horribly underfunded and it doesn't add up, writes Jesse Mulligan.
Residents are fighting a plan that could put sewage ponds near their homes.
A major conservation group says it has found a way to save the world's rarest dolphin.
Even short heatwaves mean no fruit. No fruit means no beans. No beans means no coffee.