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Latest Fred Gould Stories

2010-04-12 18:15:51

To look at the tobacco budworm moth and its close cousin, you wouldn't be able to tell the fuzzy-looking, fingertip-size moths apart. But put males of each species as far as six car-lengths away from females,  and even in the darkness of midnight they easily find their way to mates from their own species while ignoring females from the other species. Today, the genes that keep the species sexually isolated are no longer a mystery, thanks to research from North Carolina State University...

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2006-12-19 06:00:00

Without mosquitoes, epidemics of dengue fever and malaria could not plague this planet. The skin-piercing insects infect one person after another while dining on a favorite meal: human blood. Eliminating the pests appears impossible. But scientists are attempting to re-engineer them so they cannot carry disease. If they manage that, they must create enough mutants to mate with wild insects and one day to outnumber them. Researchers chasing this dream, including an N.C. State University...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.