31.   But the details of photosynthesis have turned out to be amazingly complex, with molecules doing a long, precisely choreographed dance that has evolved over billions of years.

32.   But the final design evolved over several years.

33.   But their skills have evolved over millions of years.

34.   Card marketing evolved over the last decade, with issuers clamoring for the next gimmick to boost business.

35.   Cellucci has evolved over the years from a death penalty opponent to its chief standard-bearer in the state.

36.   Classic Swiss fondue has evolved over the years.

37.   Civilization, the French asserted, was a progressive human accomplishment, evolving over centuries.

38.   Cowboy uniforms have evolved over the years.

39.   Evolved over eons to entice, a lusciously ripened fruit is pure temptation.

40.   Food regulation is now a patchwork system that evolved over the last century.