Dr. Marc Breedlove

I mean, the producers had called me up and said, you know, can you show us a way that early testosterone exposure changes behavior permanently?

And I said, sure, I can do that, give me some time.

So I went to the lab and castrated a bunch of rats on the day of birth.

I know how to do that, I'm not proud of it but I know how to do that.

And they came three months later.

And so I showed them those motor patents you talk about.

So here's a typical female.

I've given her hormones, estrogen, progesterone.

So I know she's going to be receptive.

And here's a male rat that I know has had lots of experience copulating.

And Leslie immediately dubbed him Romeo.

Okay, well, this is Romeo.

And she hates rats, by the way.

She was very brave.

So I drop a female on top of Romeo, and he starts mounting, and she shows the lordosis posture.

And it's all beautiful and easy.

And we do that several times.

I said, now I'm going to drop a male, a control male in.

And Romeo, of course, you know,

You don't know unless you try.