epa04520930 An Asian honey bee collects nectar and pollinates a flower on a balcony roof-top in a built up urban area of the Thai capital, the yellow-colored pollen sacs are seen on the rear leg, in Bangkok, Thailand, 09 December 2014. EPA/BARBARA WALTON
Science

El polen de las flores sirve como una herramienta científica para conocer el pasado

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