Read the latest opinion articles inspired by science.

Hens and roosters on grass in a backyard

Backyard hens’ eggs contain 40 times more lead on average than shop eggs, research finds

Almost one in two hens in our Sydney study had significant lead levels in their blood. Similarly, about half the eggs analysed contained lead at levels that may pose a health concern for consumers.

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A green leaf with water droplets on it
Tue, 09 Aug 2022

In a new paper published in Nature Plants, we report on a natural secret that could ultimately be used to help plants thrive while using less water.

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A flooded house, from outside. Only the roof is visible above the water.
Tue, 26 Jul 2022

Australians are reeling from climate change impacts including more frequent and severe disasters – floods, droughts, searing heat and fires. These complex disasters are fuelling calls for managed retreats and debates about buying out at-risk properties.

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A laboratory. A person's hand is reaching towards some leaves.
Tue, 26 Jul 2022

Not only can touch provide a new way to follow the flow of water through plant cells, it may also deliver new possibilities for plant monitoring and care.

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PENGUINS. As far as the eye can see.
Fri, 22 Jul 2022

Imagine this fictitious scenario. The federal environment minister announces government approval for a large-scale penguin farm near Alice Springs.

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People sitting on some rocks by the water side at dusk. The Sydney Harbour Bridge is in the background.
Thu, 21 Jul 2022

Natural ecosystems are already struggling from land clearing, intensive agriculture, soil degradation and poor water management. Climate changes and related sea level rise are making this worse. It’s a mistake to think this won’t affect us.

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A Superb fairy wren male on a branch.
Fri, 27 May 2022

To measure the speed of adaptive evolution in the wild, we studied 19 populations of birds and mammals over several decades. We found they were evolving at twice to four times the speed suggested by earlier work.

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Wed, 20 Apr 2022

The modern-day space race has led to thousands of satellites being scattered through Earth’s outer orbits. If left unchallenged, these companies risk overpopulating an already crowded space environment – potentially pushing dark skies to extinction.

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A small grey-brown lyrebird amongst the trees
Thu, 14 Apr 2022

Mention the superb lyrebird, and you’ll probably hear comments on their uncanny mimicry of human sounds, their presence on the 10 cent coin, and their stunning tail. Far less known – but equally, if not more, impressive – is the Albert’s lyrebird.

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Mon, 11 Apr 2022

Within half a century, Australia’s blue-grey mouse had seemingly disappeared, leaving behind only three scientific specimens. But is the mouse extinct, or just extremely hard to find?

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