Oceans and Reefs

Everyone's favourite nature narrator is entering into his 100th year and releasing a brand-new documentary. But this is not a gentle reflection on the past century: it's an impassioned call to arms.

A volunteer marine researcher looking into marine deaths along South Australia's coastline was rushed to hospital after her arm was skewered by a 16-centimetre stingray barb. Yesterday, a dead white shark washed up on an Adelaide beach, with testing being conducted to determine a cause.

Authorities have removed a dead shark that washed up on an Adelaide beach on Monday, with testing now underway to determine the cause of death.

Scientists and legal experts warn against commercial deep-sea mining as US President Donald Trump signs an executive order opening up both US and international waters.

A community environment group has found wildlife on an isolated section of land cut off from Bribie Island and fears coastal erosion will destroy its habitat.

A shark has been returned to the ocean after it became stuck in shallow waters off a South Australian beach.

As sharks, rays, and other marine life continue to wash up on South Australian beaches, citizen scientists are urged to record the scale of the lingering marine algal bloom event.

A school student has discovered a "very, very rare" seashell during a school holiday session at the Tasmanian Museum and Art Gallery.

Pete Furphy was surprised to discover remnants of scientific research equipment that had travelled more than 300 kilometres when he and his kids helped clean a secluded south-west Victorian beach.

New footage filmed 600 metres below the surface of the Southern Atlantic Ocean shows rare juvenile from world's heaviest squid species.

Four kilometres below the surface of the Tasman Sea is a strange world inhabited by even stranger creatures. In its autumn voyage, the CSIRO's Research Vessel Investigator took a closer look.

Four of Western Australia's last five fatal great white shark attacks have occurred in a remote tourist hotspot. Locals worry the tragic recent history will continue.

Work is underway to replace the 4 million cubic metres of sand that washed away from the city's beaches during ex-Tropical Cyclone Alfred.

From giant sea spiders to "sea pigs" and "sea butterflies" — analysing the rich biodiversity in Antarctica has thrilled researchers studying the impacts of climate change.

Huge swells, a massive king tide and storm surges have battered some of Sydney's beaches including Bondi in the city's east and Cronulla in the south overnight.

Residents and tourists came together in WA's far north today to marvel at a giant tide that swept to the very edges of the streets of Broome.

Researchers and tourism operators are alarmed as a survey of the WA coast after an intense marine heatwave reveals "heartbreaking" levels of bleaching among centuries-old coral structures.

The NSW government is set to remove shark nets at beaches from Newcastle to Wollongong a month early this year amid growing concerns from marine advocates and experts.

The sight of thousands of salmon off WA's Cheynes Beach has sparked excitement for another bumper fishing season.

Sharks were thought to be silent, but scientists have recorded a New Zealand species making a clicking noise.