I've been hunting recently with this retired guy (and learning a LOT). He worked a full career as a forensic biologist for the CA Fish and Game. Man, the stories he tells! Its intersting that he has a whole different nomenclature for taking animals when it was on the job or in free time. On the job, when getting animals for research purposes, it was "collecting" a deer. On his free time, it was "killing" a deer. No change in intonation, justification, or ethics, just one vs. the other. His mentor had "collected" many hundreds of deer and was the best shot he had ever seen. They usually went for neck shots with .22 caliber centerfires for "collecting" purposes. I asked why the neck shot, and he said, "Well, if you go with the head shot, the brain matter gets kind of 'homogenized' and you can't get a good sample of parasites and such."
That's scientific terminology for you. Kind of gross, but necessarily descriptive.