Perhaps you can help i have shot several deer over the years and have come across a couple(literally) that seem to have their lungs joined to their ribcage by a sort of membrane and whilst gralloching the pluck does not fall away easily in fact it has to be peeled off.
last week i had a red about 2 years old, male, he was in good condtion and behaved normally. When i came to gralloch him upon sawing through the breast bone i could see that i had again come across another abnormal beast , he was shot in through the 4 th rib and the bullet exited out the 8 th rib making quite a mess but i could still see alot of "frothy" membrane sticking his lungs and heart to the inside of the ribcage after peeling this out all appeared normal .
When transfering the beast to the game dealer i told him of this and he just said that he has seen it before(he stalks) but he did not know exactly what it was.
From my poor description could anybody shed any light on the subject.
Thanks in advance cervushunter