Don’t know why people have objections to this, we already use bovine and pig valves in hearts, saves lives, improves health. I am comforted by the fact that if

Don’t know why people have objections to this, we already use bovine and pig valves in hearts, saves lives, improves health. I am comforted by the fact that if I ever need to rebuild a knee someday in the future, kangaroo tendons may be an option, so I can stay off the bench and stay on the basketball court.