科学研究   常速英语

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Both the marine and the pelvic reduced population have a Pitx1 locus. The coding region of the gene is still intact in both populations. This gene we think is surrounded by a series ...

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[CARROLL:] Let's compare two flies, one without spots, which is the humdrum Drosophila melanogaster, one with spots on the male, Drosophila biarmipes. There's a gene, we're just going to ...

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What is hydraulic fracturing – or fracking? Since the industrial revolution our energy consumption has risen unceasingly. The majority of this energy consumption is supplied by fossil fuels like...

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Can we roll the video here? This video tape scans across what the BMI would be for a 5'10" individual, a male, at a different weight. So this man has a BMI of 24 he's 5'10", 167lbs. He ...

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Mechanisms of evolution. What is evolution? Evolution is the development of life on Earth. This is a process that began billions of years ago and is still continuing to this day. Evolution...

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And Francis (Crick) is known for his discovery, along with Jim Watson, of the structure of DNA. And he would occasionally indulge in a double bacon cheeseburger from Jack in the Box. A...

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The beginning of everything. The Big Bang. The idea that the universe was suddenly born and is not infinite. Up to the middle of the 20th century, most scientists thought of the universe ...

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Life is fundamentally different from dead stuff—or is it? Physicist Erwin Schrödinger defined life this way: Living things avoid decay into disorder and equilibrium. What does this mean? ...