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Dr. Ben Larson

πŸ‘€ Speaker
117 total appearances
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Podcast Appearances

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

Thanks.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

I'm excited to be here.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

Hello.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

Glad to be here.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

I think glued to the eyepiece of a microscope is probably the right picture for me.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

I mean, there can be fighting over territory, certainly, but a lot of the cells that I think about and study are fighting to get food.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

And so there can be, you know, arms races where they're battling one another.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

Or, you know, there are all sorts of fascinating predatory strategies that exist in the protist world that I think about.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

So the microbial eukaryotes.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

Okay.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

So the first one that comes to mind is one of my favorites.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

So there is this type of cell.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

It's a type of dinoflagellate.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

You might know about these things.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

Some of them are bioluminescent or some of them can form these harmful blooms and become toxic.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

But there's a certain species where the cell actually has a structure.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

It's called an alkaloid and it's basically an eye for the cell.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

So it's like a camera eye with a lens and a photo sensor.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

It has an eye.

Science Friday
Swords, cannibalism, poison: inside the world of killer microbes

Okay.

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