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Articles on Evolution

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Is there a link between our cooperative nature and our love of lying? jinterwas

The evolution of lying

Ultimately, our ability to convincingly lie to each other may have evolved as a direct result of our cooperative nature. Thus concludes the abstract of a new paper in the journal Proceedings of the Royal…
What use are Vulcan salutes when other life-forms see you as bacteria? Gage Skidmore

Meeting aliens will be nothing like Star Trek – fact

The latest Star Trek movie, opening tomorrow, raises an eternal question: why are the Klingons (or Cylons or Daleks) always at roughly our technological level? For any sense of drama, interplanetary protagonists…
Semitransparent flesh reconstruction of an embryonic dinosaur inside an egg, with skeleton shown. D Mazierski

Dinosaur Jr: raising 200-million-year-old embryos

We should forget about ever finding something as small and delicate as a dinosaur embryo, right? A few months ago I would have agreed – but now, well, things have changed. When my colleague, palaeontologist…
Warning: This article may contain traces of jokes about penises – most unintended. Lynie

Penis size may be driven by women (oh, and it matters)

How important is penis size? Authors from the Australian National University, Monash and La Trobe provide the most complete answer yet: the size of a flaccid penis can significantly affect how attractive…
You’re no more likely to lose heat from your head than other parts of your body – except your hands and feet. Taylor Mackenzie

Monday’s medical myth: you lose most heat through your head

As the weather starts to cool down and winter clothes enter rotation in our wardrobes, some peculiar combinations emerge: shorts and scarves; thongs and jackets; T-shirts and beanies. The last is often…
We use a range of hormone-induced indicators to determine who is male and who is female on a daily basis. European Parliament

Male, female – ah, what’s the difference?

What is a male? What is a female? If you were to conduct a survey, most people would probably have little difficulty expressing some fundamental differences. After all, we learn to tell boys apart from…
In species such as the jacana, above, females desert the eggs as soon as they are laid. Rainbirder

Role reversal: adult sex ratio leads to ‘gender-bending’ birds

Why do some species exhibit patterns of reversed gender roles? That question was addressed in a Nature Communications paper published yesterday. Typically in animals, females tend to invest more in caring…
Illustration of the High Arctic camel on Ellesmere Island during the Pliocene warm period, about 3.5 million years ago. The camels lived in a boreal-type forest. The habitat includes larch trees and the depiction is based on records of plant fossils found at nearby fossil deposits. Julius Csotonyi

Fossil suggests giant ancient camels roamed Canada’s Arctic north

Ancient camels up to 29% larger than their modern-day cousins may have roamed the High Arctic of Canada around 3.5 million years ago, according to a new study of a fossil found in the region. The study…
New research suggests that seeds could now be formed without the biological process of fertilisation. CIMMYT

Seeds without sex – some racy findings on the cloning of plants

Sex without seed. Seed without sex. It’s been said that the greatest gift of science to humankind would be achieving those two goals. Effective contraceptives such as the pill have pretty much nailed the…
Claims of mysterious creature sightings dominate cryptozoology – but where is the evidence? Chi-Yun

Cryptozoology? No need for an apology

All forms of science are reliant on facts, hard evidence and statistics to maintain relevance and credibility. But what of the legitimacy of the so-called “pseudosciences”? A warning: I’m going to pick…
New claims for the existence of Bigfoot appear to have been greatly exaggerated. JD Hancock

The bigger the Bigfoot claim, the bigger the need for evidence

Forget blurry pictures and casts of big foot-prints. A Texas veterinarian, Dr Melba Ketchum, and her collaborators have published an article, in a peer-reviewed scientific journal, proving the existence…

Meet your ancestor, the shrew

Placental mammals like elephants, bats and humans evolved from small, insect-eating mammals, a study led by Stony Brook University…
The new study suggests extinction driven by climate instability may be just as important as evolution as a driver of plant biodiversity. http://www.flickr.com/photos/ecologyweb

Ice Age flora extinction reveals fresh plant biodiversity clues

Ice Ages caused a mass extinction of plants in south-eastern Australia around a million years ago, according to a new study that presents a fresh take on how extinction shapes biodiversity. Scientists…
It may be some time before we hear the pitter-patter of Neandertal feet. flequi

Women sought for Neandertal surrogacy? Not Yeti, thankfully

In a sort-of Ice Age version of Jurassic Park, Harvard University’s Professor George Church has suggested – to much media coverage – that, one day soon, scientists somewhere will place a very unusual personal…
Sponges and hydra, which are made of colonies of cells with a small number of cell types, have some similarities with cancer. Biodiversity Heritage Library

An astrobiological view of cancer’s evolutionary origin

Life originated on Earth about four billion years ago. Death, sex and multicellularity came along about a billion years later. According to our new atavistic model, cancer came with multicellularity. About…

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