The first exhibit is Lenski’s long-term evolution experiment, in which, after some 33,000 generations, bacterial cells evolved the ability to grow on citrate.
The world — indeed, the universe — is charged with grandeur. Everything speaks of its beauty, power, and purpose — of its exquisite and intelligent design.
The lesson from woolly mammoth studies, and many other ones, is that it is much faster and easier to break or blunt a gene than to improve or make a new one.
