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Image (left) of the Mata Menge lower jaw fragment (SOA-MM4) superimposed on the Homo floresiensis skull (LB1) from Liang Bua, and compared with a modern human skull from the Jomon Period of Japan. Y. Kaifu

A 700,000-year-old fossil find shows the Hobbits’ ancestors were even smaller

Fossil finds on another dig on an Indonesian Island show the Hobbits may have been around for much longer than first thought.
A 700,000 year-old stone tool excavated by an Indonesian field worker at Mata Menge, Flores. Yinika Perston

How the Hobbits kept their tools as they shrank into island life

New fossil finds show the first large-bodied inhabitants of an isolated Indonesian island evolved to Hobbit-size, but they always remembered how to make and use stone tools.
A makeshift shrine to Harambe, the zoo gorilla whose death has raised some uncomfortable moral questions. William Philpott/Reuters

How do we weigh the moral value of human lives against animal ones?

We tend instinctively to value human lives over non-human ones. But is there a point where the scales might tip the other way?
The original excavation of Mungo Man, found near Lake Mungo in southwestern New South Wales, Australia. Wilfred Shawcross.

New DNA study confirms ancient Aborigines were the First Australians

Research first published in 2001 has been used to question of whether Aboriginal People were the First Australians. So why not re-test those results with improved techniques and equipment?
Much of the ‘smart cities’ rhetoric is dominated by the economic, with little reference to the natural world and its plight. Ase from www.shutterstock.com

Taking the city’s pulse: we need to link urban vitality back to the planet

The rhetoric of ‘smart cities’ is dominated by the economic, with little reference to the natural world and its plight. Truly smart and resilient cities need to be more in tune with the planet.
Some companies have used nano-titanium dioxide to make powdered sugar on donuts whiter. Shutterstock

No big deal: there is little to fear from nanoparticles in food

Two new studies from Food Standards Australia and New Zealand show there’s no evidence that nanoparticles in food present a health risk, but there’s more research to be done.
Coal has provided us with some stunning fossils. Bart Bernardes/Flickr

Coal’s formation is a window on an ancient world

Despite its insidious influence on the climate and our health, coal has a lesser-known positive side to its otherwise dark soul. It has provided us with some stunning fossils.
While politicians like Malcolm Turnbull and Barnaby Joyce do the traditional photo-ops, fewer people than ever are taking on farming, which can no longer support vibrant rural and regional communities on its own. AAP/Tracey Nearmy

Election 2016: the issues in non-metropolitan Australia

What are the issues facing rural and regional Australia? The challenges are many and varied – and only some have made the national political agenda – but these areas deserve better than neglect.
Bill Shorten, launching Labor’s childcare policy, inadvertently set off a debate about the major party leaders’ respective feminist credentials. AAP/Joel Carrett

The f-word enters the campaign and trips up both major parties

Talk of ‘women’s issues’, such as childcare, both accepts they are less important than other issues and assumes they have no universal value.
Dementia can affect the ability to perform tasks such as dressing, showering and eating. from shutterstock.com

How Australians Die: cause #3 – dementia (Alzheimer’s)

Dementia is the third leading cause of death in Australia. As the population ages, the number of people with dementia is expected to rise, as is the number of deaths from dementia.
In the Exoplanet Era, we are learning that planets abound in the cosmos. ESO/M. Kornmesser

Explainer: How to find an exoplanet (part 1)

Astronomers have discovered more than 3,000 planets around other stars, so far. In the first of a two-part series we look at how they find world’s elsewhere in the universe.