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Hot Topic
Origins
Origin & Evolution of Life
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| Digging Down Below the Tree of Life |
| Topic: Origin & Evolution of Life |
03/28/13 |
| Genomic studies consistently show that all life on Earth is related, but our earliest ancestors may not have evolved in the same way we do now. |
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| Life's First Taste of Phosphorus |
| Topic: Origin & Evolution of Life |
08/23/12 |
| Phosphorus is vital to life on Earth, even though our planet doesn't provide life very much phosphorus to work with. Scientists are now studying how phosphorus biochemistry may have originated at the dawn of life. |
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| Channeling our Ion Past |
| Topic: Origin & Evolution of Life |
06/07/12 |
| To understand how the first cells transported ions across their membranes, researchers are studying simple channels used by fungi to kill off bacteria. |
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| A Salt-Free Primordial Soup? |
| Topic: Origin & Evolution of Life |
01/19/12 |
| Most scientists who study the origin of life assume that it occurred in the ocean. But a minority view is that ions in seawater may interfere with prebiotic chemistry, making a freshwater environment more likely. |
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| In Search of Virus Fossils |
| Topic: Origin & Evolution of Life |
10/17/11 |
| Have viruses been around since life first appeared on Earth? To learn about the history of viruses, scientists are exploring whether salt beds and hot springs preserve viral signatures. |
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| Amino Acid Alphabet Soup |
| Topic: Origin & Evolution of Life |
08/18/11 |
| All life on Earth relies on a standard set of 20 amino acids to build the proteins that carry out life's essential actions. But did it have to be this way? |
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| Skeletons in the Pre-Cambrian Closet |
| Topic: Origin & Evolution of Life |
01/06/11 |
| Researchers are studying some of the earliest skeletons in order to better understand the ancient advancement of animal life. |
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| The Day the Algae Died |
| Topic: Origin & Evolution of Life |
12/13/10 |
| The P-T mass extinction may have been instigated by populations of algae dying. According to one group of scientists, this die-off of large numbers of relatively simple life forms caused a crash in the ocean's entire food web. |
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