Evolution is biology's powerful method of engineering. It works by generating many variants of DNA, RNA, and proteins inside cells and letting nature "select" the organism that performs best.
This is a rush transcript of "This Week" airing Sunday, March 8.
This article explains how diet creates sustained epigenetic changes that affect long-term health, disease risk, aging, and ...
In Lake Malawi, hundreds of species of cichlid fish have evolved with astonishing speed, offering scientists a rare opportunity to study how biodiversity arises.
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