Freshwater fish at the top of the food chain evolve more slowly. National Evolutionary Synthesis Center, August 28, 2009. Once fish evolve the size and speed needed to become top predators, natural selection keeps them in an evolutionary holding pattern, a new study finds.
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New fossil tells how piranhas got their teeth
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New fossil tells how piranhas got their teeth. National Evolutionary Synthesis Center, June 25, 2009. How did piranhas — the legendary freshwater fish with the razor bite — get their telltale teeth? An international team of researchers uncover a jawbone that sheds some light on the bite. Picked up by Science Magazine, National Geographic News, Fox News, US News and World Report, MSNBC, and the Philadelphia Inquirer.
Mockingbirds in fickle climates sing fancier tunes
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Mockingbirds in fickle climates sing fancier tunes. Duke Today, May 21, 2009. Why are some birds simple singers and others vocal virtuosos? Researchers suspect that inconsistent climates may play a role. Picked up by theAustralian Broadcasting Corporation, USA Today, BBC News, Science News, Daily Telegraph, and Nature Research Highlights.
Prevent invasive plant species from taking over the Eno
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Prevent invasive plant species from taking over the Eno. Duke Today, August 28, 2008. A Duke biologist is arming citizens with hand-held GPS navigation devices to mark the locations of non-native plants along state park trails while they enjoy the park.