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Displaying 3021 - 3040 of 3737 articles

Large trees don’t slow down with age. Michelle Venter

Big old trees grow faster, making them vital carbon absorbers

Large, older trees have been found to grow faster and absorb carbon dioxide more rapidly than younger, smaller trees, despite the previous view that trees’ growth slowed as they developed. Research published…
A queen bee tended by her workers … but take away her pheromones and they start to act strangely. Flickr/KrisFricke

Smells like queen spirit: royal pheromones in insect colonies

Much like people, insect colonies like to know if her majesty is at home. In the ants, bees, wasps and termites (the “big four” of the social insect world), the queen has long been suspected of using special…
The Holy Grail of myrmecology: the Dinosaur Ant. Ajay Narendra

Australian endangered species: Dinosaur Ant

The Dinosaur Ant (Nothomyrmecia macrops) is so-called because it is a “living fossil”. It is arguably one of the closest living examples of what some of the earliest true ants might have been like, both…
People living in the bush can’t rely too heavily on controlled burn-offs to protect their home. AAP Image/Channel Ten

Which homes will survive this bushfire season?

After the early onset of the 2013-14 bushfire season, it is worth reviewing which homes are more likely to be left standing when the fires inevitably return. One of the most important factors to note is…
Very few are questioning how many children Australians actually want to have and whether we are achieving our childbearing goals. AAP/Alan Porritt

Family size intentions: the missing piece of Australia’s fertility jigsaw

With Australia experiencing declining fertility rates over the past four decades, governmental concern has increased over the consequences of the falling birth rate and how the trend might be reversed…
Good news! Christmas electricity consumption might surprise. Malingering/Flickr

What can we learn from looking at electricity use on Christmas day

On Christmas Day in Australia, fewer people are at their paid employment and more working premises are closed than on any other day in the year. How does this affect demand for electricity, widely seen…
Break down the reduction in demand and you’ll find price matters. Nicholas Lieby

Why is electricity consumption decreasing in Australia?

Until 2010, for well over a century, through two world wars and the Great Depression, the quantity of electricity used in Australia each year was greater than the year before. In the three years since…
A juvenile black-eared cuckoo being fed by an adult speckled warbler. David Cook

How birds cooperate to defeat cuckoos

Why help another when you can help yourself? Cooperation is very common in nearly all life, from genes and cells to humans and other animals. However understanding why can be difficult: being selfish seems…
Next year marks 100 years since the Gallipoli landings and the start of the genocide Armenians, Assyrians and Hellenes in Ottoman Turkey. AAP Image/Australian Government

Turkey, the Armenian genocide and the politics of memory

Victims of genocide die twice: first in the killing fields and then in the texts of denialists who insist that “nothing happened” or that what happened was something “different”. On the eve of two centennial…
Academics are often accused of political bias – but should your nail your political colours to the mast? Colour image www.shutterstock.com

Showing your colours: the good and bad of academics joining political parties

I’ve always thought being an academic is like living in the middle of an endless war where the weapon of choice is words. You could say the same of parliament, so it is perhaps surprising that relatively…
There was no plan in treasurer Joe Hockey’s MYEFO to get the economy out of a slump, and it looks like staying there for some time. AAP/Alan Porritt

MYEFO: how can the Abbott government fix Australia’s economy?

Sooner or later, the Abbott government will have to stimulate the economy using fiscal policy – just like the Rudd government did in response to the global financial crisis and the Howard government did…
Round-the-clock news coverage of every boat arrival helps create the perception Australia is facing a crisis. AAP/Jon Faulkner

Seeing refugee flows in a broader context points to a better way

Before 9/11 and the “Tampa” episode in 2001, Australia played a thoroughly constructive and decent role in refugee resettlement following World War Two and the Vietnam War. This happened despite a cultural…
Chairman and Managing Director of GM Holden, Mike Devereux, has confirmed the company will cease making cars here by 2017. Julian Smith/AAP

Holden to cease making cars in Australia by 2017: experts react

General Motors Holden has confirmed speculation it will withdraw from car production in Australia by the end of 2017. The announcement by Holden comes after days of sustained public speculation and calls…
Early microbial communities, such as stromatolites, are intrinsically linked with the rise of oxygen. hannah takes pictures/Flickr

The rise and fall of oxygen

How long has Earth’s atmosphere included oxygen? A recent paper suggests low levels of oxygen appeared in the atmosphere approximately 2.95 billion years ago. That’s about 550 million years earlier than…
Recent revelations of Australia’s intelligence practices have brought oversight issues into sharp focus. What mechanisms are there to hold these agencies to account? AAP/Dan Peled

Intelligence oversight and accountability: who watches the watchers?

The recent revelations of alleged telephone interception of Indonesian politicians, espionage in East Timor and raids in Canberra have raised more questions than they have answered about Australia’s intelligence…
Are fixed term elections the answer to the AEC’s problems, as identified in the report into the handling of the ballot papers in Western Australia? AAP/Lukas Coch

WA Senate ballot farce: fix the date, fix the problems

The release of Mick Keelty’s report on the missing Western Australian Senate ballot papers from the 2013 federal election gives us an unusually in-depth look at how the Australian Electoral Commission…
It hasn’t all been repeal… AAP Image/Alan Porritt

Climate and science policy: the Coalition’s first 90 days

As the end of the Parliamentary year draws to a close, and we mark the Coalition’s first few months in power, I thought it would be useful to provide a comprehensive list of climate change and science…
Timor Leste claims that a treaty with Australia on regulating the exploitation of petroleum and similar resources in the Timor Sea is now invalid. EPA/Antonio Dasiparu

Explainer: Australia and Timor Leste in The Hague

Several issues of international law arise from Timor Leste’s dispute with Australia over the negotiations of a 2006 treaty regulating the exploitation of petroleum and similar resources in the Timor Sea…
Tony Abbott has announced his priorities for the G20 in Brisbane next year. AAP

Delivering growth but protecting economies: our G20 conundrum

With Russia handing the G20 host baton to Australia this month, and combined with our UN Security Council seat, the biggest year of Australian diplomacy begins. Prime Minister Tony Abbott had a backdrop…

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