I often split the pelvis and open the rib cage on deer to help them cool a little, it's often pretty warm here even in Dec/Jan. The little bone saw blade on the gerber exhange a blade is quick and easy to use and saves putting a knife to bone. I usually don't carry it in the woods as I don't open those until I get back to the truck....opening the ribcage and pelvis before dragging them out just let's more leaves/trash get in. I usually have a hatchet on the ATV/truck but I don't use it on game.
https://www.gerbergear.com/en-us/shop/cutting-tools/saws/exchange-a-blade-46036
