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Unfertilized monkey eggs make stem cells
Scientists have for the first time obtained long-lived stem cells from monkey eggs stimulated to undergo parthenogenesis.
- Health & Medicine
Heart recipients add their own cells
Transplanted hearts incorporate muscle and blood-vessel cells from their new host, suggesting that the heart may regenerate its own tissue.
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Bug Watching
Crazy about insects? The Sonoran Arthropod Studies Institute in Arizona has a “Backyard Bugwatching” page with links to photos and articles focusing on a variety of insects and their diverse habitats. Learn what it takes to track Mexican leaf-cutter ants and catch bullet ants.
