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Frozen in Time: Gas puts mice metabolically on ice
Researchers have induced a hibernation-like state in mice by exposing them to low concentrations of hydrogen sulfide.
- Health & Medicine
Fast Start: Sex readily spreads HIV in infection’s first weeks
People with HIV are many times more infectious to their sexual partners in the weeks or months just after they acquire the virus than they are later on, a study in Uganda demonstrates conclusively.
- Ecosystems
Ambush Ants: Beware the moldy patch on that branch
Tiny tropical ants build shaggy platforms on plants and hide underneath them, poised to reach out and capture insects that may be far larger than themselves.
