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The Evolving Story of Heredity

A female neriid fly (bottom right) lays eggs on rotten tree bark while her mate fights off an interloper. Credit: Russell Bonduriansky

A female neriid fly (bottom right) lays eggs on rotten tree bark while her mate fights off an interloper. Credit: Russell Bonduriansky

By Angela Crean & Russell Bonduriansky

Biologists are discovering that there is a lot more to heredity than genes. In the latest twist, it turns out that offspring size in an Australian fly species can be determined by the diet of its mother’s previous mating partner.

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The High Price of Obsolete Science

Misplaced fear of radiation and accidents is impacting our response to climate d

Misplaced fear of radiation and accidents is impacting our response to climate destabilisation.

By Geoff Russell

The anti-nuclear movement co-opted the environment movement on the strength of theories about DNA, radiation and cancer that have long been proven false.

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The Ancient African Coins of Arnhem Land

Kilwa coins

With the Kilwa coins, we have potential evidence of much earlier contacts that challenge the Captain Cook-centred view of Australian history that prioritises English and some Dutch discoveries.

By Ian McIntosh

Indigenous knowledge is informing a scientific expedition that hopes to uncover the origins of medieval African coins that may have been left in Arnhem Land hundreds of years before the arrival of Cook.

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Organs by Inkjet

Inkjet printers can already print living cells.

Inkjet printers can already print living cells.

By Cameron Ferris

The development of a new biological ink takes us one step closer to the goal of printing living cells in three dimensions to create whole organs.

Cameron Ferris is an Associate Research Fellow at the ARC Centre of Excellence for Electromaterials Science, University of Wollongong (http://www.electromaterials.edu.au).

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Early and Delayed Motherhood Linked to Schizophrenia Risk

Credit: Monkey Business

Credit: Monkey Business

By Sang Hong Lee

A mother’s age when she gives birth is associated with her child’s likelihood of developing schizophrenia, but is this because psychosocial factors associated with the mother's age affect her child's risk, or because women with a higher genetic risk for schizophrenia are more likely to have their first child at an early or late age?

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The Ethics of Online Genomics Tests

Credit: Syda Productions/adobe

Credit: Syda Productions/adobe

By Jacqueline Savard

There is a significant difference between the expectation and reality of direct-to-consumer personal genome testing, creating a gap where interesting tensions and ethical dilemmas sit.

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What’s the Key to Chronic Fatigue?

alphaspirit/Adobe

Credit: alphaspirit/Adobe

By Donald Staines & Sonya Marshall-Gradisnik

Chronic fatigue has a range of debilitating symptoms that have defied a pathological explanation. Now researchers are zeroing in on receptors with a role in the immune system.

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The Devil Is in the DNA

Credit: Menna Jones

Credit: Menna Jones

By Anna Brüniche-Olsen & Jeremy J. Austin

DNA analysis reveals that Tasmanian devils survived a major population decline thousands of years ago, leaving them with low genetic diversity to withstand devil facial tumour disease.

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Survival of the Littlest

© Peter Schouten from Feathered Dinosaurs: The Origin of Birds

Jinfengopteryx, a feathered bird-like dinosaur. © Peter Schouten from Feathered Dinosaurs: The Origin of Birds

By Michael Lee

Birds co-existed with their dinosaur ancestors for nearly 100 million years, but eventually outlived them. Two new studies have revealed why.

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