News
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She salamanders punish fickle mates
Female salamanders get aggressive if the male they share a rock with wanders back after an interlude with another female.
- Materials Science
Apollo attire needs care
Advanced spacesuits protected astronauts far from Earth just 30 years ago, but the materials have already deteriorated.
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Tales from the crypts: Cells battle germs
Inhabiting tiny pits in the small intestine, so-called Paneth cells defend other cells in these crypts by discharging bacteria-killing bursts of enzymes and other molecules.
- Health & Medicine
Do more infections mean less asthma?
Young infants kept out of day care and having no more than one older sibling are significantly more likely to develop asthma than are babies who have greater exposure to other children.
