Uncategorized
- 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. Journey to Costa Rica’s rainforests for close-ups of novel arthropods. Watch […]
- Earth
Old pesticide still makes it to Arctic
Molecules of the pesticides known as chlordanes, which belong to a class of long-lasting organochlorine pollutants, circulate in Arctic air years after they were applied in temperate latitudes.
