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Moss Express: Insects and mites tote mosses’ sperm
A lab test has shown that mosses have their own version animal-courier system for sperm that's similar to pollination.
- Tech
Wheel of Life: Bacteria provide horsepower for tiny motor
Crawling bacteria can power a micromotor.
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Engineering a Cure: Genetically modified cells fight cancer
By inserting a gene into normal immune cells isolated from melanoma patients, scientists have turned the cells into cancer fighters.
- Animals
Flea treatment shows downside of social life
The flealike parasites that build up in a shared burrow take an unexpectedly large toll on the ground squirrel's reproductive success.
