News tagged with ancestors

Humans, sharks share immune-system feature

A central element of the immune system has remained constant through more than 400 million years of evolution, according to new research at National Jewish Health. In the September 29, 2011, online version ...

Sep 30, 2011 4.7 / 5 (7) 0 | with audio podcast

Earth history and evolution

In classical mythology, the cypress tree is associated with death, the underworld and eternity. Indeed, the family to which cypresses belong, is an ancient lineage of conifers, and a new study of their evolution affords a ...

May 03, 2012 3.9 / 5 (7) 1 | with audio podcast