what women want

Ha! Got your attention! (& no, nothing to do with Mel Gibson.) What I really wanted to do was draw your opportunity to this post by PZ, over on Pharyngula. He’s talking about explanations offered by evolutionary psychology for various human behaviours. The article PZ’s commenting on was looking at people’s sexual responses to a variety […]

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waterflea helmets – lamarckian, or epigenetic?

Water fleas – Daphnia – are rather cute little freshwater arthropods: In some circumstances (water temperature, presence of predators), rather than having that sharp little point on their heads (top of the picture, above the eyespot) some Daphnia will have a longer, spikier ‘helmet’. And this is where it gets interesting: it depends on the mother. If a […]

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does drinking coffee lower the risk of developing alzheimer’s disease?

"Gosh" said my husband, rustling the newspaper. "You’d better start drinking coffee!" He’d just come across a report saying that drinking more coffee in one’s middle years is associated with a decreased chance of developing Alzheimer’s disease, or other forms of dementia, in old age. But is this enough to make me want to give up my […]

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snowball earth

For anyone with a passing interest in global climates, present & past, the UK’s Birmingham University has put out an excellent article looking at the conditions that could have prevailed on a’snowball Earth’.  The term ‘snowball Earth’ refers to a time (about 630 million years ago) when our planet was in the grip of a major ice […]

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