Textbook Articles
- When Knowledge and Ethics Collide
- Stem Cell Research — Potential Solutions, Practical Challenges
- Medical Technology — The Genetic Forefront
- Drug-Resistant Bacteria — A Global Health Issue
- Global Warming — Changing the Planet
- Pandemics — Is the Next One on the Way?
- Genetically Modified Foods — Do Potential Problems Outweigh Benefits?
- The Loss of Biodiversity
- Brain Science — We Are Wired to Learn!
Zebra mussels, shown here clinging to a native mussel species, are old news now that quagga mussels have begun to take over. (Photo credit: USFWS)
July 06, 2010Mussels Wreaking Havoc in American Waterways
Move over, zebra mussels. There's a new invasive mollusk species in town. While biologists have been trying to quell the spread of the zebra mussels, quagga mussels, bivalves native to Ukraine, have quietly been taking over waterways from the Great Lakes to the Colorado River.
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Polar bears at the San Diego and the Singapore zoos turned green when algae infested the hollow cores of their hairs.
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Some Birds Get Their Groove On, Too
Until recently, the ability to keep time to music was considered to be a characteristic unique to humans. However, research now indicates that several species of parrots, such as the cockatoo shown above, are also able to move rhythmically to a musical beat. Perhaps the next season of Dancing with the Stars should consider adding a few avian contestants? (Photo credit: GlobalP/ istockphoto.com)
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