Brief points.

• Localización: Scientific American, ISSN 0036-8733, Vol. 295, Nº. 2, 2006, págs. 32-32
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • This article presents science news briefs. A 300-mile-wide crater under the Antarctic ice may by the evidence that an object 30 miles wide caused the earth's greatest mass extinction millions of years ago. A study of fig trees possibly links the domestication of fig trees with the beginnings of agriculture. Scientists have discovered the location of stem cells in mammalian heart tissue.