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Latest Rotifers Stories

2012-11-16 14:08:02

Believed to 'ingest' DNA from other simple organisms Up to ten per cent of the active genes of an organism that has survived 80 million years without sex are foreign, a new study from the University of Cambridge and Imperial College London reveals. The asexual organism, the bdelloid rotifer, has acquired a tenth of its active genes from bacteria and other simple organisms like fungi and algae. The findings were reported today in the journal PLoS Genetics. Bdelloid rotifers are best...

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2010-06-15 08:04:54

A new study shows that humans and tiny aquatic animals known as rotifers have something important in common when it comes to sex. Barely visible without a microscope, rotifers eat algae and serve primarily as food for baby fish. But the females of certain rotifer species can do something quite unusual: they can reproduce asexually by creating clones of themselves, or they can initiate a process that allows sexual reproduction by producing male rotifers. The chemical mediator for this change...

2010-01-28 15:07:16

They haven't had sex in some 30 million years, but some very small invertebrates named bdelloid rotifers are still shocking biologists "“ they should have gone extinct long ago. Cornell researchers have discovered the secret to their evolutionary longevity: these rotifers are microscopic escape artists. When facing pathogens, they dry up and are promptly gone with the wind. "These animals have evolved a way to avoid parasites and pathogens by drying up and blowing away," said Paul...

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2008-03-25 15:40:00

Finding could stimulate new study of free radicals' role in inflammation, cancer, agingScientists at Harvard University have found that a common class of freshwater invertebrate animals called bdelloid rotifers are extraordinarily resistant to ionizing radiation, surviving and continuing to reproduce after doses of gamma radiation much greater than that tolerated by any other animal species studied to date.Because free radicals such as those generated by radiation have been implicated in...

2005-08-06 15:36:16

WOODS HOLE, MA - A January 2004 finding by biologists at the Josephine Bay Paul Center for Comparative Molecular Biology and Evolution added important evidence to the radical conclusion that a group of diminutive aquatic animals called bdelloid rotifers have evolved for tens of millions of years without sexual reproduction, in apparent violation of the rule that abandonment of sexual reproduction is a biological dead end. Now, MBL scientists are beginning to understand just what's different...


Word of the Day
barghest
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).
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