Here's a look at how Tom's hair has evolved over the past year.

The difference, they believe, is far too small to have evolved over 40 million years.

We learned about how individual companies have evolved their food safety programs over the past few years.

It evolved over a period of more than 2000 years.

Proposed in the 1970s, the plan has evolved over time.

The method has evolved over the course of the church's history.

In addition students learn how those ideas have evolved over the years.

Seven Soldiers started off as a different project which evolved over time.

As indeed it does: such was the nature of the work, evolved over so many years.

The much more interesting question is how this will evolve over the next 40 years.