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Study Finds Reverse Evolution Among Dust Mites, Shift from Parasitic to Free-Feeding Lifestyle
03-09-2013, 07:19 AM #1
Mister Kitters (╯°□°)╯︵ ┻━┻
Posts:518 Threads:52 Joined:Mar 2013
From article:

Quote:A pair of University of Michigan biologists say they found evidence that contradicts one of the fundamental laws of evolution.

Findings published in the Proceedings of the National Academy of Science journal, by biologists Pavel Klimov and Barry O'Connor indicate evolution is not a one way road. During a study focused on the evolution of free-living house dust mites, the duo found evidence that challenges Dollo's Law which stipulates that once an organism evolves and assumes certain features it cannot drop them and adopt the form of its ancestors.

Researchers analyzed DNA from more than 700 different mite species and tested 62 different hypotheses about their evolution. Their findings suggest dust mites have forgone the parasitic lifestyle of their ancestors who depended on their host and instead have become free-feeding organisms that dine on such things as discarded human skin. Parasitic dust mites are believed to have evolved from free-living organisms.

"Parasites can quickly evolve highly sophisticated mechanisms for host exploitation and can lose their ability to function away from the host body," Klimov said in a statement, International Business Times reports.. "They often experience degradation or loss of many genes because their functions are no longer required in a rich environment where hosts provide both living space and nutrients. Many researchers in the field perceive such specialization as evolutionarily irreversible."

Read more: http://www.latinospost.com/articles/1399...eeding.htm

I question the general assumption that felines are inherently deficient in the area of grammar and sentence structure.
03-09-2013, 04:43 PM #2
Octo Mother Superior
Posts:43,018 Threads:1,474 Joined:Feb 2011
Soon they'll be building little geodesic domes, domesticate other bugs and grow organic stuff.

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