It's from a genus called Pachysoma.

You group similar species into a genus.

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 along comes pneumococcus or another bacteria, streptococcus and boom, they get a bacterial pneumonia.

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.

So probably it doesn't matter 50 years from now streptococcus and stuff like that will be rampant because we won't be here.

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

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

You might have a lobar pneumonia, for example, and they could give you an antiserum, an injection of rabid antibodies to the bacterium streptococcus, if the intern sub typed it correctly.