Catálogo de publicaciones - revistas

<jats:title>Colonizing the roof of the world</jats:title> <jats:p> Humans only settled permanently on the Tibetan plateau about 3600 years ago. Chen <jats:italic>et al.</jats:italic> examined archaeological crop remains unearthed in northeastern Tibet, which elucidate the timing of agricultural settlement. Although much earlier traces of humans in Tibet have been dated to 20,000 years ago, year-round presence at the highest altitudes appears to have been impossible until the advent of suitable crops, such as barley. Surprisingly, these prehistoric farming communities expanded onto the plateau at the same time as climate was cooling. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6219" page="248" related-article-type="in-this-issue" vol="347" xlink:href="10.1126/science.1259172">248</jats:related-article> </jats:p>

<jats:title>Geese need to hug the land to fly high</jats:title> <jats:p> Animal migrations provide numerous examples of astonishing feats. Impressive even among these is the migration of bar-headed geese across the Himalayan Mountains, which reach heights of thousands of meters. Bishop <jats:italic>et al.</jats:italic> remotely monitored birds' heart rates, movement, and body temperature during migration. The geese “hug” the landforms, taking advantage of drafting and wind patterns. This unexpected strategy conserves energy, even though it means the geese repeatedly lose, and must then regain, altitude. </jats:p> <jats:p> <jats:italic>Science</jats:italic> , this issue p. <jats:related-article xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="doi" issue="6219" page="250" related-article-type="in-this-issue" vol="347" xlink:href="10.1126/science.1258732">250</jats:related-article> </jats:p>