The enigma of bronze age tin

The origin of the tin used in the Bronze Age has long been one of the greatest enigmas in archaeological research. Now researchers from Heidelberg University and the Curt Engelhorn Centre for Archaeometry in Mannheim have ...

The global invasion routes of the red swamp crayfish

Spanish National Research Council (CSIC) researchers have reconstructed the invasion routes followed by the red swamp crayfish during its human-driven expansion based on the analysis of a mitochondrial gene (COI), which was ...

Better city bike maps are made by volunteers

Not all bike routes are equal. Some places that are marked as bike routes on a map feel precarious when traversed on two wheels, including shoulders covered in debris and places where you can feel the wind from speeding cars.

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