Conservation group Sea Shepherd have photographed a Japanese whaling ship with a dead whale in protected waters.

In the last of a five-part series looking at research in Auckland's blue backyard, an expert discusses how far our ocean ecosystems can be pushed.

Getting closer than 50m to a killer whale could set you back a couple hundred thousand or land you behind bars.

In the second of a five part series on Auckland's big blue backyard, science reporter Jamie Morton talks to seabird expert Dr Brendon Dunphy.

A sleek, human-driven submarine and a cutting-edge underwater sensing system are among the impressive innovations of a team of Auckland Uni engineers.

This week, the Herald takes a look at Kiwis who are dedicated to helping our animals. Today Jamie Morton looks at Kelly Tarlton's Turtle Rehabilitation programme.

A Kiwi climate scientist says he's been alarmed at how much sea ice the planet's poles lost in 2016, in what was one of the hottest years on record.

Fishing companies pledge changes to help endangered Maui dolphins.

Tristram Clayton embarks on an unforgettable tour of the Celebrity Solstice while it visits Auckland.

It's regularly voted one of the world's best, but Coromandel's Hot Water Beach is also New Zealand's most dangerous.

The new Ross Sea Sanctuary.

NZers are celebrating the agreement by 25 countries to establish an enormous sanctuary in Antarctic waters.

Scientists have just discovered a new species of heavyweight shark - but we're 20 million years too late to have seen it.

As consultation opens on an oil and gas drilling plan, some city councillors are now questioning if the Government will listen to what they say.

A Tauranga wildlife photographer was diving with friends when two orca "appeared out of nowhere".

New research into the complex links of the food chain suggest that the lovable mammals play a key role in managing carbon dioxide levels.

A Whangarei man had a close encounter with a great white shark, capturing the exciting moment on video.

Currents are shifting, temperatures are climbing and the availability and dynamics of nutrient upwelling is changing.

Close encounter with "the most beautiful of sharks" earns place among New Zealand Geographic's Photographer of the Year finalists.

Baby orca J50 leaps out of the waters of Haro Strait between islands in British Columbia and America's Washington state, seemingly with a large stretch of water to itself.

Since becoming New Zealand's first marine reserve in 1975, Goat Island has proven to be worth its weight in gold - and snapper.

A long-standing mystery over why the world’s sea level was dramatically higher 135,000 years ago than it is today is closer to being solved by scientists.

Researchers have linked an ancient marine dolphin fossil, found in Waitaki, with an endangered dolphin that lives in Nepal, India, and Bangladesh.

A company which spent up to $65 million in a failed bid to mine ironsands from the South Taranaki seabed, has applied for a prospecting permit covering a huge swathe of seabed north of Ross.

After years of threatening to inject its unwelcome wet and dry extremes into our climate, the chances of El Niño shaking up weather are now greater than ever, scientists say.

Picture postcard fjords like those in the South Island have been found to likely play a significant part in regulation of the planet's climate, according to a newly published study by Kiwi and international researchers.

There are fears tuna are teetering on the edge of survival as an excess of boats fight over a decreasing number of fish.