Charles Darwin (1809-1882) opened his first notebook about "the species question" in 1837, not long after his return from the voyage of the Beagle. By 1838, he had developed the basic outline of his theory of natural selection to explain the evolution of species. He spent the next 20 years developing the theory [...]
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A very brief comment on a complicated topic… New Scientist has a story in the current issue about epigenetics — differences in gene expression that are not due to changes in the gene sequences themselves — and how non-genetic variation can be both influenced environmentally and, in some cases, inherited. The New [...] If you want to see the first draft of Darwin’s ideas on natural selection — in the form of a handwritten sketch from 1842 — then be sure to visit the Complete Works of Charles Darwin Online which now makes this material accessible online. [...] The Skeptical Alchemist posted this video, which has some significance for me since I was in Hiroshima less than 2 weeks ago. Say what you want about the need to end the war, the expected casualties during an invasion, or whatever other rationalizations you like. But consider this question, by Leó Szilárd: “Suppose [...] Two very different movies will be released today. The first is Expelled: No Intelligence Allowed. The other is Constantine’s Sword. I haven’t seen them so I won’t comment specifically on either (though I will point readers to Expelled Exposed again). But for your interest, here are the trailers. [...] In Canada, as in many countries around the world, November 11 is a day of remembrance for the sacrifices made during wartime. In Canada, this refers in particular to World War I (1914-1918) and World War II (1939-1945), but also to smaller engagements in which Canadians were (or are) involved, such as Korea and [...] It is commonly suggested by anti-evolutionists that recent discoveries of function in non-coding DNA support intelligent design and refute “Darwinism”. This misrepresents both the history and the science of this issue. I would like to provide some clarification of both aspects. When people began estimating genome sizes (amounts of DNA per genome) in the [...] The name “Gregory” is used as both a first name and a surname, and I wish I had a nickel for every time someone said “No, your last name” after I told them my name was “Gregory”. Jokes about having two (actually, three) “first” names have been a staple in my life as well. [...] Today, April 19th, is the anniversary of Charles Darwin‘s death in 1882. I refer you to an excellent post by PZ Myers on Pharyngula about the details of Darwin’s passing [The Death of Darwin]. Darwin is buried at Westminster Abbey in London, within a few yards of Sir Isaac Newton. There is a [...] The term “genetics” has been used in reference to the branch of science dealing with “the physiology of heredity and variation” since 1905. It was coined by the British biologist William Bateson, first in a 1905 letter (see Bateson 1928), and then publicly the following year (Bateson 1906). It was derived directly from the [...] |
T. Ryan Gregory 
I am an evolutionary biologist specializing in genome size evolution at the University of Guelph in Canada.
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