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Latest Rachel Whitaker Stories

Microbes Found Speciating In Russian Hot Spring
2012-02-22 09:04:50

[ Watch the Video ] It was Darwin who, upon studying evolving creatures, wondered how species diverge if they are living together. “That question really hasn´t been answered very well, even in the macro-organisms that we´ve studied for hundreds of years,” University of Illinois microbiology professor Rachel Whitaker ponders. Despite still being in close proximity to one another in an acidic, boiling habitat of a hot spring in Kamchatka, Russia, two groups of...

2009-05-28 14:32:15

U.S. scientists say they've discovered populations of the microbe Sulfolobus islandicus that can live in boiling acid are more diverse than thought. University of Illinois researchers in Champaign said they found the diversity of S. islandicus is driven largely by geographic isolation and that finding demonstrates, for the first time, that geography trumps other factors that influence the makeup of genes in organism hosts. The researchers, led by Professor Rachel Whitaker, compared three...

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2009-05-27 11:23:28

Sulfolobus islandicus, a microbe that can live in boiling acid, is offering up its secrets to researchers hardy enough to capture it from the volcanic hot springs where it thrives. In a new study, researchers report that populations of S. islandicus are more diverse than previously thought, and that their diversity is driven largely by geographic isolation. The findings open a new window on microbial evolution, demonstrating for the first time that geography can trump other factors that...


Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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