See you later, alligator...

See you later, alligator.

The alligator ate the dog.

It's from a genus called Pachysoma.

You group similar species into a genus.

The ropes were suddenly off the alligator.

Dr Krauss is aware of genus command.

The earliest members of our lineage, the genus Homo, were darkly pigmented.

These are two shots of a red tide coming on shore here and a bacteria in the genus vibrio, which includes the genus that has cholera in it.

And I actually made up a little character whose name was Mr. Alligator.

And I would pack a little bag and wait for Mr. Alligator to come.

An alligator stuff'd, and other skins Of ill shaped fishes and about his shelves

This is a different species in the same genus but exactly the same foraging behavior.

Maybe I can group species into other categories. And that's where we get the genus from.

Just as in the case of star formation here in galaxy formation, genus length or genus mass are key concept to determine the scale of fluctuations that can actually grow or fragment in the smaller one.

Now, Mr. Alligator never did come, but the idea of Mr. Alligator coming actually saved my sanity and made it OK for me to keep going, because I believed, in the distance, there would be someone coming to rescue me.

For example, in New Orleans we have Cajun Chinese food, where they serve Sichuan alligator and sweet and sour crawfish.

There are 13 species in the genus, and they have a particular behavior that I think you will find interesting.

And it hit me in that moment that it had taken 47 years, but that Mr. Alligator had finally shown up.

And then he went even beyond that, because even the idea of grouping things into a genus dated back to the ancient Greeks.