The Conversation

The Conversation

The Conversation

The Conversation is an independent source of news and views, funded by the academic and research community and delivered direct to the public. The Conversation launched in Australia in March 2011.
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Animal Sex Is Spicier Than We Thought

Animal Sex Is Spicier Than We Thought

There’s an idea circulating that humans are the only animal to experience sexual pleasure; that we approach sex in a way that is distinct from others. As with many questions about sex, this exposes some interesting facts about the way we discuss the subject.On one level, the question of whether humans and non-humans experience sex in the same way is fairly simply dismissed: how would we know? We cannot know how a nonhuman experiences anything – they can’t be asked. Sex as an experiential phenomenon for non-humans is, quite simply, inaccessible. Science is obliged to propose questions that are answerable, and “how does a leopard slug experience sex?” is, at time of writing, about as unanswerable as they get.

It's Naive To Pretend Differences Between Women And Men Are Just Genetics

It's Naive To Pretend Differences Between Women And Men Are Just Genetics

It's naïve to pretend there are no profound genetic and epigenetic differences between the sexes. Elephant Gun Studios, CC BY-NCGender differences and sexual preferences are frequently a point of conversation. What produces the differences between men and women? Are they trivial or profound? Are they genetic or environmental, or both?

Building Blocks Of Life Found Among Organic Compounds On Comet 67P

Building Blocks Of Life Found Among Organic Compounds On Comet 67P

Scientists analyzing the latest data from Comet 67P Churyumov-Gerasimenko have discovered molecules that can form sugars and amino acids, which are the building blocks of life as we know it. While this is a long, long way from finding life itself, the data shows that the organic compounds that eventually translated into organisms here on Earth existed in the early solar system.

People Are Not Scared Of GMO Warning Labels

People Are Not Scared Of GMO Warning Labels

There is an economic and political battle taking place in America over the labeling of genetically modified (GM) foods. In 2015, 19 US states considered GM food labeling legislation and three States, Connecticut, Maine and Vermont have passed mandatory GM labeling laws.The US House on July 23 passed the Safe and Accurate Food Labeling bill (HR 1599), which will move to the Senate and, if passed, will prohibit both state-level legislation regarding GM labels and the labeling of products that contain GM ingredients.Proponents of HR 1599 argue that GM labels will act as a warning. Another reason people oppose labeling is that they say scientific evidence has shown GM foods are safe.

An Anti-Aging Pill Is Still A Long Way Off

An Anti-Aging Pill Is Still A Long Way Off

Last month a team of doctors and scientists made the case to regulators at the Food and Drug Administration (FDA) to consider approving anti-aging drugs as a new pharmaceutical class. Such a designation would treat aging as disease rather than a natural process, potentially opening the door to government funding for anti-aging drug trials.

Varying Animal Research Standards Are Leading To Bad Science

Varying Animal Research Standards Are Leading To Bad Science

Scientific research sometimes requires the use of animals. It’s a fact. And as long as that is the case, we need to do everything in our power to minimize the distress for laboratory animals. This is not just for the sake of the animals, but also for the sake of science itself. We know that the quality of life of an animal can actually affect its physiology and, thereby, the research data.But unfortunately, the standards of animal care vary greatly across countries and even across research institutes. The time has come to overhaul this system and replace it with globally enforced rules.

Half Of Biomedical Studies Aren't Reproducible – And What We Need To Do About That

Half Of Biomedical Studies Aren't Reproducible – And What We Need To Do About That

What if I told you that half of the studies published in scientific journals today – the ones upon which news coverage of medical advances is often based – won’t hold up under scrutiny? You might say I had gone mad. No one would ever tolerate that kind of waste in a field as important – and expensive, to the tune of roughly US$30 billion in federal spending per year – as biomedical research, right? After all, this is the crucial work that hunts for explanations for diseases so they can better be treated or even cured.

Promising Prognosis: Cancer Deaths Continue To Fall

Promising Prognosis: Cancer Deaths Continue To Fall

The rate of Australians dying from cancer is on a steady, downhill trajectory, thanks to powerful advances made in prevention, diagnosis and treatment of the disease. New data from the Australian Institute of Health and Welfare shows a promising outlook for those diagnosed with cancer.Deaths from all cancers combined fell from 199 per 100,000 people in 1968, to 167 per 100,000 in 2012 - a decline of 2.6 deaths per 100,000 people per year.“This confirms that we are steadily making improvements in most cancers, in terms of survival,” said Professor Timothy Hughes, Cancer Theme Leader at SAHMRI.“And it’s coming from better prevention, better screening and better therapy.”

Genes May Influence How Well You Take Tests

Genes May Influence How Well You Take Tests

Could it be that genetic differences can affect how well children perform in exams? Our research suggests that this may well be the case and that individual differences between children are, to a large extent, due to the inherited genetic differences between them that predisposes them to do well academically, whatever the subject.We also found that there is shared genetic influence across a range of subjects, even after controlling the exam results for general intelligence.

Epigenetics: Quackery Or Phenomenon?

Epigenetics: Quackery Or Phenomenon?

Are you really what your mother ate, drank or got stressed about? The simple answer is “no”, but not in the way you think.We are products of nature via nurture. Our genes and environments interact. And “environment” can be what we are experiencing now or at any time during our life.An overwhelming body of evidence, from both humans and other animals, has shown that the environment we experience in the first 1,000 days of life influences our risk of chronic diseases: conditions such as heart disease, diabetes, psychiatric disorders and some cancers.

Kenya Example: How Re-Analyzing Scientific Research Data Can Change The Findings

Kenya Example: How Re-Analyzing Scientific Research Data Can Change The Findings

Science, many people believe, is kept in check by scientists reviewing each other’s work. This has recently extended to re-analysis of data to see if results can be replicated, and has overturned important findings in medicine, economics, and sociology.We re-analyzed an influential randomized controlled trial of deworming in Kenyan schools. We found that even for a randomized controlled trial – lauded as the most robust method to identify impact – there are aspects of analysis and reporting where re-analysis can shed new light.

How Snakes Lost Their Legs

How Snakes Lost Their Legs

How did the snake get its slither? Ever since the crafty serpent in Genesis tempted Eve into eating the forbidden fruit, we’ve been fascinated by snakes. And, despite our interest in this animal, we have a poor understanding of how it actually evolved. But scientists have now released a new study on the fossil of a snake that appears to have lived between 100m and 146m years ago. And what’s more it had legs.