RE: deer anatomy
One other one that just came to mind when I was reading your post again. A friend of mine took a mature doe with his muzzleloader. When processing the meat they found a green platic vane in her shoulder meat. Only the good Lord knows how long it was in there but there was no sign of injury other than the green plastic arrow vane.
And I recall reading an article in Bowhunter Magazine about a guy who took a world class elk. The article started with him hitting one the year prior. The following year he shot this elk and in processing he found his broadhead from the previous year not 2 inches from his lethal hit......
Enjoy the forum and have a great remaining season.