What death is can only be understood by man; birds and beasts feel the inactivity resulting from death, the absence of life, but they do not realize what death really is. I have seen a bird, when its mate was shot and fell dead, settle beside it, feel it with its beak, and when it felt that it was still and lifeless, drop its head and give up its life before the hunter could approach. I have also seen a dog die instantly when it saw that its companion dog with which it had spent its life was dead. But still, animals feel only the inactivity, the absence of the friend. They do not fully realize the true nature of death.