javierportal

javier fernández-portal díaz del río

@javierfportal

"Busca la verdad mientras eres joven, pues si no lo haces, después se te escapará de entre las manos" (Parménides).

Saturday, February 25, 2012

Study: Evolution of earliest horses driven by climate change

Study: Evolution of earliest horses driven by climate change
SCIENCE NEWS | 23 FEBRERO 2012

When Sifrhippus, the earliest known horse, first appeared in the forests of North America more than 50 million years ago, it ... Read more