Shipud (685171) writes "Mammalian genomes have been shrinking for about 65 million years, since the dinosaur extinction. Why? And why were mammalian genomes 3 times larger than they are today before the dinosaurs went extinct? A new article in Genome Biology and Evolution tries to explain this bizarre finding, and why the genomes of mammals (but not of other living groups) are still shrinking." Link to Original Source
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