Scientists have found dust from the asteroid that wiped out the dinosaurs inside the crater it left
A new study found iridium, an element found in asteroids, in the rocks of the Chicxulub impact crater.
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Don’t count your fish before they hatch: experts react to plans to release 2 million fish into the Murray Darling
Fish must be released into good quality water, with suitable habitat and lots of food. These conditions have been quite rare in Murray Darling rivers in recent years.
Glitter’s sparkle hides a darker side – it can change the chemistry of our oceans
New research shows microplastics in glitter can disrupt how marine life builds its shells and reefs.
How autonomous underwater robots can spot oil plumes after an ocean spill
Clean-up operations after a spill can miss large quantities of the oil, with severe risks for marine habitats, fish and birds.
Sponges can survive low oxygen and warming waters. They could be the main reef organisms in the future
Sponges are ancient marine animals and have already shown robustness against stresses from climate change. New research now shows they can also tolerate low-oxygen conditions.
Hidden housemates: we live with a zoo of harmless mini‑beasts
Our homes harbour hundreds of species of insects and their relatives.
Ocean eddy currents funnel extreme heat and cold to the life‑filled depths
Ocean eddy currents are driving extreme heat and cold events in the deeper sea, home to the world’s most abundant animal and its largest migration
Pesticide residue from farms and towns is ending up in fresh oysters
Herbicides and pesticides wash downriver from farms and towns – and some of these chemicals are taken up by oysters.
Farmed salmon is now a staple in diets – but what they eat matters too
Fish farming has been criticised for a lack of sustainability – here’s what has been changing and what still remains a challenge.
A monster eddy current is spinning into existence off the coast of Sydney. Will it bring a new marine heatwave?
Giant eddy currents in the sea spread heat. But if trapped in place, they can cause marine heatwaves deadly to sea life. And there’s a big one shaping up off Sydney right now.
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