New Zealand's humpback whale population has jumped to its highest level in 12 years, a new survey has found.

Department of Conservation bosses are employing "secret shoppers" to track controversial great white shark dive experiences.

The survival chances of Northland's endangered kiwi populations have been dealt a severe blow with at least seven kiwi killed by a dog, or dogs, near Kerikeri.

A cute takahe chick stole the show today as Motutapu island celebrated 21 years of volunteer conservation work.

A baby humpback whale spotted in the Cook Strait yesterday is only the second calf reported in New Zealand waters.

There are signs that the humpback spotted in Cook Strait is the famed Migaloo.

Kiwi scientists are confident of cracking one of conservation's biggest riddles - cryopreservation.

Conservation Minister Maggie Barry said the Department of Conservation was giving priority to the investigation, now in its third week, but it was "complex."

The same team that recently captured two male kiwi having a testosterone-fuelled scrap have now caught this chance encounter between a tagged kiwi and a feline.

Another seal has shown up Auckland — this time in Campbells Bay on the North Shore.

A letter from the Department of Conservation addressed to members of the Taupo Fishery Advisory Committee has been described as proposing "trout farming by stealth" and is certain to raise....

A $11.2 million bag of rescue money for our critically endangered national bird has been welcomed by environmental groups.

A tramper who tackled the Tongariro Crossing in shorts and running shoes remains in a stable condition in Rotorua Hospital.

Cool fun activities are doing more for conservation at Auckland’s regional parks than many a lecture could.

Police want to know who took a kayak and a range of survival equipment to Rangitoto Island - and left it there.

They may be hated pests that love eating our cherished native birds, but pesky introduced stoats have just become a little more interesting to scientists overseas.

An enormous effort to save native birds from a tide of pests has delivered some promising results in the South Island, following 1080 drops across vast swathes of beech forest.

The dead oarfish washed up at Aramoana last week has disappeared and marine experts are warning against eating its 3m-long fillets.

Otago Peninsula jewelled geckos smuggled to Germany are the first to return to New Zealand under strengthened rules to crack down on poaching.

A bizarre, self-amputating, vertical swimming, serpent-like marine specimen has washed up on the salt marsh at Aramoana in Dunedin.

Solutions are critical in their own way for the challenge that is turning the tide on the loss of nature in New Zealand, writes Marie Brown.

In the first of a two-part series on New Zealand’s ‘vanishing nature’, author Marie Brown explains the country’s biodiversity crisis - and why things are getting worse.

A rare kiwi chick that has been recovering at Wellington Zoo for the past six weeks is heading back to the wild.

I spent last week in the Auckland Islands, where only a few people get to go. DoC, the Navy and universities send people down a few times a year.

A real estate agent has been fined after a buyer wasn't told that 112sq m of public land was included within the property boundary fence.

Nearly 10 per cent of our coastal marine area is now safeguarded by reserves. But are we really doing enough? Science reporter Jamie Morton poses five key questions.