Small World Speaks

Portrait of a Tiny Predator

Dr. Igor Siwanowicz

In this Small World Speaks episode, Dr. Igor Siwanowicz, Research Scientist at Howard Hughes Medical Institute and a repeat Nikon Small World winner, shares the origin story behind his 2011 1st Portrait of a Chrysopa sp. (green lacewing) larvalace image of a portrait of a Chrysopa sp.(green lacewing) larva.

I was on the way from cafeteria back in Munich, and I felt this pinch on my hand, and turns out it was this little tiny larva of a green lacewing just chomping on me.

the way they feed is they use these very elongated mandibles as hypodermic needles to inject paralyzing toxins and digestive enzymes into the prey. And, on the other hand, they use them as straws to suck this cocktail of nutrients.

But yeah, I got this one little guy, and I decided to image it because why not? I was always lucky because I'm getting a lot of mileage out of the technique of sample preparation that involves agar embedding and sectioning on vibratum.

And the problem is that you have no control where this plane of sectioning is going to go through in the sample.

But, it worked pretty well.

My standard method of staining muscles using phalloidin that binds F-actin.

I find a lot of, specimens, around the lunch break after, on the short walk around the campus after lunch.

So you have to have an eye out.

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