How Did Cactuses Evolve

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Cactus
In a groundbreaking new study in the June issue of American Naturalist, Erika J. Edwards (Yale University and University of California, Santa Barbara) and Michael J. Donoghue (Yale University) explore how leafy, "normal" plants evolved into the leafless succulent cactus.


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All News summaries for May 15, 2006

Large population of endangered dolphins found off Bangladesh

8 hours ago | User rating: not rated yet
The world's largest population of vulnerable Irrawaddy dolphins -- famed as aquarium attractions -- has been found in Bangladesh's waters, according to a five-year wildlife study.

Endangered Miss. frogs get a break in the weather

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(AP) -- Pick up a Mississippi gopher frog and it covers its eyes with its forefeet, like someone afraid to see what's coming next. And for at least a decade, it's had a good reason not to look.

Nobel Prize winner Dr. George Palade dies at 95

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(AP) -- Dr. George Palade, who won a Nobel Prize in 1974 for his work isolating and identifying cell structure and helped create one of the leading cell biology programs in the nation at the University of ...

Lost manatee headed to Fla. after Mass. rescue

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(AP) -- A wayward manatee is headed home to Florida after being pulled from frigid Cape Cod waters in an early morning rescue.

Landmark study unlocks stem cell, DNA secrets to speed therapies

Oct 10, 2008 | User rating: not rated yet
In a groundbreaking study led by an eminent molecular biologist at Florida State University, researchers have discovered that as embryonic stem cells turn into different cell types, there are dramatic corresponding ...
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