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Earth Aurora: Chandra Looks Back At Earth (View Original Story)
Source: Posted: 01-02-2006 at 12:00:32
| In an unusual observation, a team of scientists has scanned the northern polar region of Earth with NASA's Chandra X-ray Observatory. The results show that the aurora borealis, or "northern lights," also dance in X-ray light, creating changing bright arcs of X-ray energy above the Earth's surface. |
Overfishing May Drive Endangered Seabird To Rely Upon Lower Quality Food (View Original Story)
Source: Posted: 01-02-2006 at 06:00:15
| The effects of overfishing may have driven marbled murrelets, an endangered seabird found along the Pacific coast, to increasingly rely upon less nutritious food sources, according to a new study by UC Berkeley biologists. The researchers suggest that feeding further down the food web may have played a role in low levels of reproduction observed in contemporary murrelet populations, and has likely contributed to the seabirds' listing as an endangered species. |
Research Tracks Whales By Listening To Sounds (View Original Story)
Source: Posted: 01-02-2006 at 06:00:15
| Researchers have developed a new tool to help them study endangered whales -- autonomous hydrophones that can be deployed in the ocean to record the unique clicks, pulses and calls of different whale species. Those efforts are leading to some surprising findings, including the discovery by a team of researchers of rare right whales swimming in the Gulf of Alaska. |
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