Periodical
Breath of life.
| Title: | Breath of life. |
|---|---|
| Authors: | Ward, Peter |
| Source: | New Scientist, 28/04/2007, Vol. 194 Issue 2601, p38-41, 4p |
| Abstract: | The article discusses findings that indicate that oxygen levels in Earth's atmosphere have fluctuated throughout its history. It may have been these variations that have energized life to make leaps of development or forced it to retreat. This would include events such as the colonization of land, numerous mass extinctions, and the rise of the dinosaurs. |
| Subject Terms: | BIOLOGICAL evolution, ATMOSPHERE, OXYGEN, AIR, EARTH sciences, SURFACE of the earth, EARTH (Planet) |
| ISSN: | 02624079 |
| DOI: | 10.1016/S0262-4079(07)61071-9 |
| Database: | Australia/New Zealand Reference Centre |
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