We, I guess my approach had, had always been to, you know, you’re, you’re trying to answer questions. Sometimes that’s just a one-off, you know, what, what do I need to do with this animal to treat this problem or, or diagnose this problem, which is more the detective side of it. But stepping back, one of the things that we had recognized was, while we had very good success with reproduction in the great apes, there was sort of a subset, particularly of the gorillas that had reproduced before but weren’t getting pregnant. And one of the things that we were suspecting was this cohort of the gorilla population was fairly overweight. You know, the, the, the euphemisms, they’re big bone, they’re, you know, those sorts of things. And so we wanted to put, I wanted to put some science behind quantifying exactly what was, what was going on, how, how did they compare with other gorillas. And so we had a nutritional consultant at the time who had done work with, you know, some pretty high level scientific work and in this case using heavy water, you know, the D two o, it’s, it’s water with an extra nuclei on the hydrogen side anyway, but it’s, it’s the, the process was you, you inject that, let it equal equilibrate over all of the water in the body, draw it out and, and what you can find out by knowing the animal’s weight and then subtracting the total amount of water in the body, you can tell how much of the body is regular soft tissue, bone, whatever, versus fat. ’cause fat has no water in it.