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Cloning is most efficient using non–stem cells
Fully matured cells can be used to clone animals.
- Animals
Tropical diversity came with time
Species in richly diverse tropics don't evolve faster than do species in temperate zones.
- Health & Medicine
Antiviral drug may limit herpes spread
In people with genital herpes, the drug famciclovir sharply reduces virus shedding from the genitalia.
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Prepared brains achieve insight
Sudden verbal insights arise from distinct brain operations that focus attention and facilitate access to word knowledge.
- Health & Medicine
Do acid blockers let microbes reach the colon?
Suppressing stomach acid while taking antibiotics may allow drug-resistant bacteria to colonize the intestines.
