We sent a team to the West Coast to meet with [Digital Research], but they weren't interested in working with us.

The evidence is unclear. There's research on both sides.

As we parted at the Natural History Museum in London, I asked Richard Fortey how science ensures that when one person goes there's someone ready to take his place.

He chuckled rather heartily at my naiveté. 'I'm afraid it's not as if we have substitutes sitting on the bench somewhere waiting to be called in to play. When a specialist retires or, even more unfortunately, dies, that can bring a stop to things in that field, sometimes for a very long while.'

And I suppose that's why you value someone who spends forty-two years studying a single species of plant, even if it doesn't produce anything terribly new?'

'Precisely,' he said, 'precisely.' And he really seemed to mean it.

We have to see what the optimal dosing will be. It all depends on what the research shows.

Our research shows that as much as 15 percent of Sears store sales are influenced by customer research on Sears.com. That number is even higher for appliances -- as many as 20 percent.

Congratulations to GE Global Research for their commendable efforts towards the restoration and enhancement of wildlife habitat. Together, we are committed to being good stewards of the earth.