I'm

.

I'm

. Good morning. I'm Jane Pauley, and this is Sunday morning. The kiss, a simple gesture, but loaded with meaning, far more perhaps than most of us realize.

French poet Alfred de Moucée tells us, with a kiss we set out for the unknown world.

So with Cupid making his annual Valentine's appearance in just a few days, this morning we turn to Susan Spencer to size up the smooch.

Kiss me beneath the Milky Twilight. It's almost Valentine's Day.

How about a kiss?

Kissing is something that we have evolved to do over time that is a way of showing that you care.

But why does smashing your mouth

up against somebody else's mouth show that you care? Well, it feels good. From polar bears

to prairie dogs to people, why we kiss. Ahead on Sunday morning. 50 years ago this month,

the Eagles released their first collection of

greatest hits the biggest selling album in history. The band is still performing to

sold-out crowds led by co-founder Don Henley who's talking with Tracy Smith.

To a generation of music love who's talking with Tracy Smith. On a dark near the highway.

To a generation of music lovers, the Eagles are essential.

But they won't be around much longer, says band co-founder Don Henley.

So what if people say, we want more Eagles after this?

I guess they'll just have to listen to the records.

Welcome to the Hotel California.

An Eagle show like you've never seen before and they never see again.

...