Related topics: bacteria · climate change · mercury

'Mad cow' disease case identified in Netherlands

Dutch officials have identified a single case of bovine spongiform encephalopathy, commonly known as "mad cow disease", in a cow carcass, the agriculture ministry said Wednesday.

Early humans: Tooth enamel reveals life histories

If you take a magnifying glass and a flashlight and look at your teeth very carefully in the mirror, in places you can spot a pattern of fine, parallel lines running across your teeth. These correspond to the striae of Retzius ...

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