You Find It - 698
Lizards Undergo Rapid Evolution After Introduction To A New Home
16:47 18-04-2008; source: www.sciencedaily.com
In 1971, biologists moved five adult pairs of Italian wall lizards from their home island of Pod Kopiste, in the South Adriatic Sea, to the neighboring island of Pod Mrcaru. Now researchers have shown that introducing these small, green-backed lizards, Podarcis sicula, to a new environment caused them to undergo rapid and large-scale evolutionary changes.
Flu Tracked To Viral Reservoir In Tropics
16:47 18-04-2008; source: www.sciencedaily.com
Each winter, strains of influenza A virus infect North Americans, causing an average of 36,000 deaths. Now, researchers say the virus comes from a viral reservoir somewhere in the tropics, settling a key debate on the source of each season's infection. "We now know where the influenza A virus comes from every year," said a biologist involved with the research. "And because we now know how the virus evolves, we have a much better chance of controlling it."
Millions Of Pounds Of Trash Found On Ocean Beaches
16:47 18-04-2008; source: www.sciencedaily.com
Ocean Conservancy released its annual report on trash in the ocean with new data from the 2007 International Coastal Cleanup the most comprehensive snapshot of the harmful impacts of marine debris. The mission of Ocean Conservancy's International Coastal Cleanup is to engage people to remove trash from the world's beaches and waterways, to identify the sources of debris and to change the behaviors that cause pollution.
Hawaiian Plant, Thought To Be Newcomer, Actually Shaped Ecology Of The Islands From The Beginning
16:47 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
16:47 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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