If you look at the universe and study the universe, what you find is that there is no evidence that we need anything other than the laws of physics and the other laws of science to explain everything we see. There's absolutely no evidence that we need any supernatural hand of god. -- Lawrence Krauss, World-Renowned Physicist
There is probably no other notion in any field of science that has been as extensively tested and as thoroughly corroborated as the evolutionary origin of living organisms. -- Encyclopedia Britannica
FAITH. No one word personifies the absolute worst and most wicked properties of religion better than that. Faith is mind-rot. It’s the poison that destroys critical thinking, undermines evidence, and leads people into lives dedicated to absurdity. It’s a parasite regarded as a virtue. -- PZ Myers
Religion is the antithesis of science, an anesthetic for the mind that disables critical thought and encourages the acceptance of inanity as fact, and wishful thinking as evidence. -- PZ Myers

Monday, October 15, 2012

"The power of science – nothing is taken as fixed, knowledge changes and increases, in a uniquely progressive way, enabling us to revise and refine our understanding, and even to reject what we previously thought to be true."

"The power of science – nothing is taken as fixed, knowledge changes and increases, in a uniquely progressive way, enabling us to revise and refine our understanding, and even to reject what we previously thought to be true."
-- Matthew Cobb at Putting our DNA clocks back.

In this post I'm not going to talk about America's science denying idiots except to say the science deniers translate scientific progress to mean "evolution has problems". This is why I call them idiots and a few other things. New research makes evolution stronger and that's a good thing.

One of the most interesting things about biology is the ability of molecular biologists to measure how long ago common ancestors of two species diverged on the tree of life. When one branch of that tree became two branches. They measure time by counting the number of mutations in a DNA sequence in both species, by knowing the average mutation rate per generation, and by knowing the length of time of each generation.

Recently according to Mr. Cobb new research shows old estimates of mutation rates were probably too high. Therefore, for example, the common ancestor of people and chimps may have lived 9 million years ago instead of 6 million years ago.

I recommend Putting our DNA clocks back because Matthew Cobb has the advantage of being a biologist who knows how to explain why new research shows estimates of mutation rates may have been wrong.

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