I know first hand they can get stuck in a dog's throat. We almost lost our minature dachshund  dog last night to a mini dingo. He loves them and will chew on them constantly, well he decided to swallow too big of piece. He was not breathing, limp in our hands and foaming at the mouth before we able to work it down his throat. It was to far in for us to reach down and pull it out.

As much as our little guy loves Dingos he will never get another one.