University of California - Riverside

Oxygen's challenge to early life

The conventional view of the history of the Earth is that the oceans became oxygen-rich to approximately the degree they are today in the Late Ediacaran Period (about 600 million years ago) after staying relatively ...

Jan 05, 2011 4.4 / 5 (15) 10 | with audio podcast

Living on islands makes animals tamer

(Phys.org) —Most of us have seen pictures and probably YouTube videos of "tame" animals on the Galapagos Islands, the biological paradise that was Charles Darwin's major source of inspiration as he obse ...

Jan 10, 2014 4.8 / 5 (6) 1 | with audio podcast