1,543 results
1,543 results for: Bees
- 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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- Life
Why flies can drink and drink
Fruit flies use sophisticated pumps to suck fluids as thick as syrup.
- Life
Killer bees aren’t so smart
Brains are probably not what powers the invasive bee’s takeover from European honeybees
- Life
Old amoebas spawn their farms
Some slime molds use a simple form of agriculture to ensure a steady food supply.
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No one villain behind honey-bee colony collapse
Many factors may interact to bring on the mysterious honey-bee colony collapse disorder.
- Life
Hornets suffocate in bee ball
Researchers find a spike in carbon dioxide, along with an increase in heat, makes honeybees' enemies vulnerable.
- Tech
Plenty of foods harbor BPA, study finds
Some communities have banned the sale of plastic baby bottles and sippy cups that are manufactured using bisphenol A, a hormone-mimicking chemical. In a few grocery stores, cashiers have already begun donning gloves to avoid handling thermal receipt paper whose BPA-based surface coating may rub off on the fingers. But how’s a family to avoid exposure to this contaminant when it taints the food supply?
- Life
Bent innards give orchid its kick
Violent pollen delivery in Catasetum flowers gets its power from temporarily deformed inner strip
