Spindle-shaped inclusions in three-billion-year-old rocks are microfossils of plankton that probably inhabited the oceans around the globe during that time, according to scientists.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/H...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/H...



Tendencias Científicas
La prevención del VIH no llega a las jóvenes sudafricanas

CIENCIA ON LINE