Unearthing Clues Of Catastrophic Earthquakes
17:39 18-04-2008; source: www.sciencedaily.com
The destruction and disappearance of ancient cultures mark the history of human civilization, making for fascinating stories and cautionary tales. The longevity of today's societies may depend upon separating fact from fiction, and archaeologists and seismologists are figuring out how to join forces to do just that with respect to ancient earthquakes.
Hawaiian Plant, Thought To Be Newcomer, Actually Shaped Ecology Of The Islands From The Beginning
17:39 18-04-2008; source: www.sciencedaily.com
One of Hawaii's most dominant plants, Metrosideros, has been a resident of the islands far longer than previously believed. Metrosideros, commonly called "ohi'a" in the Hawaiian Islands, has puzzled researchers for years. Although previously thought to be a newcomer to the islands, these plants are well integrated into the islands' ecosystems.
Early Exposure To Common Weed Killer Impairs Amphibian Development
17:39 18-04-2008; source: www.sciencedaily.com
Tadpoles exposed to the herbicide atrazine during an often overlooked growth phase named organ morphogenesis develop deformed hearts and impaired kidneys, according to biologists. Atrazine is one of the most widely used weed killers in the United States and is already known to be harmful to amphibians exposed to the chemical in early and late developmental stages. But the Tufts research focuses on a critical third stage.
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