Singapore is one of the busiest cities in the world.

But biologist Philip Johns is fascinated by a different inhabitant on the island.

Otters.

At rush hour, downtown, the otters would swim toward each other,

and they're literally tens of thousands of people who are on their way to work.

How ideas, emotions, and creatures coexist.

That's next time on the TED Radio Hour from NPR.

Hello and welcome to Car Talk from National Public Radio with us,

Click and Clack the Tappet Brothers, and we're broadcasting this week from the Department of Milestones here in Car Talk Plaza.

And my brother will begin to explain. We did pass a very major milestone this week, and it was

very painful, I understand. No, actually, it wasn't that kind of a milestone. We have to

explain a little bit. We drive these test cars. We call them test cars. What are they really?

They're provided to us by the manufacturers like GM Chrysler.

Right.

And the hope that we might find something good to say about them, which hardly ever happens.

But once in a while we do.

But we have these cars that we drive.

And naturally, I have to drive it and my brother has to drive it and Berman has to drive it.

Why he has to drive that? We don't know. We don't know why. He's somehow in the loop. We can't

get him out. He's in the loop. So at some point, we have to, like, there were three cars that we

will have for a couple of weeks or a week or whatever it is. So I'll drive it for a few days and I'll give it to my brother. I'll swap with

my brother. My brother swats with Doug and we swap back and forth. And the whole plan,

...