1,503 results
- Animals
Animals on the Move
Worldwide — on land, in the sea and in rivers, streams and lakes — wildlife is responding to rising temperatures.
- Science & Society
90th Anniversary Issue: 1940s
The Atomic Age, elementary finds and other highlights, 1940–49
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- Humans
Geographic profiling fights disease
Widely used to snare serial criminals, a forensic method finds application in epidemiology.
- Ecosystems
Honeybee death mystery deepens
Government scientists link colony collapse disorder to mix of fungal and viral infections.
- Plants
Bees face ‘unprecedented’ pesticide exposures at home and afield
Honey bees are being hammered by some mysterious environmental plaque that has a name — colony collapse disorder – but no established cause. A two-year study now provides evidence indicting one likely group of suspects: pesticides. It found “unprecedented levels” of mite-killing chemicals and crop pesticides in hives across the United States and parts of Canada.
- Earth
Green-ish pesticides bee-devil honey makers
Pesticides are agents designed to rid targeted portions of the human environment of undesirable critters – such as boll weevils, roaches or carpenter ants. They’re not supposed to harm beneficials. Like bees. Yet a new study from China finds that two widely used pyrethroid pesticides – chemicals that are rather “green” as bug killers go – can significantly impair the pollinators’ reproduction.
- Math
Cells take on traveling salesman problem
With neither minds nor maps- chemical-sensing immune players do well with decades-old mathematical problem, a computer simulation reveals.
- Paleontology
India yields fossil trove in amber
Insect remains suggest the continent hosted a surprisingly wide variety of creatures 50 million years ago.
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