Marine life

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Sleeper shark

Surprise shark caught on camera for first time in Antarctica’s frozen depths

Many experts had thought sharks didn’t exist in the Southern Ocean’s frigid waters before a “hunk of a shark” swam into view of a remote camera.

  • Rod McGuirk

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Decomposing sea sponges at the Ardrossan Big Jetty are among the casualties of the algal bloom off South Australia’s coast.

‘The water was completely dead’: Inside the grim race with a microscopic enemy

‘Seen the worst I can see’: On this remote stretch of beach, a new ground zero has emerged.

  • Bianca Hall
The old versus new boat moorings off Balmoral Beach.

Boats wreak hidden havoc on the harbour. Now the damage is being undone

In “a major success for the city”, seagrass has been replanted for the first time underneath new environmentally friendly boat moorings.

  • Caitlin Fitzsimmons
An environmentally friendly version installed off Balmoral Beach has enabled seagrass meadows to be replanted.
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Better boat moorings to restore Sydney Harbour

An environmentally friendly version installed off Balmoral Beach has enabled seagrass meadows to be replanted.

A shark seen in the shallows near a washed up dolphin carcass at Bungan Beach, Newport.

Shark stalks washed-up dolphin carcass on Sydney’s northern beaches

Graphic footage shows a dolphin carcass decomposing on the sand. The dorsal fin in the shallows behind is what closed the beach.

  • Jack Gramenz
Bungan Beach in Sydney has been closed after a shark sighting. (Instagram/Cameron Bloom)
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Dead dolphin attracts sharks

Bungan Beach in Sydney has been closed after a shark sighting. (Instagram/Cameron Bloom)

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Index image for Antarctica story

In the Trump era of America first, scientists fear for the future of Antarctica

There are growing concerns the treaty that has protected the last great wilderness for nearly 70 years may not hold as the old rules-based world order disintegrates along with the sea ice.

  • Caitlin Fitzsimmons
Domenic Svejkar from KBR Consultancy says Sydney should unearth its lost waterways to cool the environment.

The pitch to bring Sydney’s hidden waterways to the surface

Colonial maps show a city with vast waterways now lost beneath roads and buildings, but “daylighting” hidden waterways in the suburbs could help cool Sydney down as the climate changes.

  • Aidan Elwig Pollock
An archival photo of one of the museum’s adult goblin shark specimens.

Goblin sharks off Sydney: The young scientist unveiling creatures of the deep

Australian scientist Yi-Kai Tea is investigating one of the weirdest realms of the ocean – and it’s right on Australia’s doorstep.

  • Angus Dalton
The shark leaps out of the Parramatta River while King’s School rowers train in Sydney earlier this week.

‘Exactly what we need’: Call for shark danger rating system

Australia’s fire danger ratings alerts millions to potentially fatal danger. Experts say we can do the same for sharks

  • Mike Foley