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Elephants don't grow so large overnight. And a new study published in PNAS shows that it takes at least 24 million generations for a mammal the size of a mouse to evolve into something as big as an elephant, reports Veronique Greenwood at Discover magazine's 80beats blog.

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People reports that researchers have uncovered genetic variants that lead people to always feel full.

The Oregon state Senate unanimously passed a bill that would make it easier for people convicted of crimes to initiate DNA testing of evidence, according to the Associated Press.

Florida state senators are to weigh a bill prohibiting life insurance companies from using genetic information in coverage decisions, according to Florida Politics.

In Genome Research this week: metagenomic sequencing assay that detects pathogens in cerebrospinal fluid, single-tube long fragment read approach, and more.