Adam said "Lord, when I was in the garden, you walked with me everyday. Now I do not see you anymore. I am lonesome here and it is difficult for me to remember how much you love me."
And God said, "No problem! I shall create a companion for you that will be with you forever, and who will be a refletion of my love for you, so you will love me even when you cannot see me. Regardles of how selfish, or childish, or unlovable you may be, this companion will accept you as you are, and will love you, as I do, in spite of yourself."
And God created a new animal to be a companion for Adam. And God was pleased. And the new animal was pleased to be with Adam, and he wagged his tail.
And Adam said, "Lord, I have already named all the animals in the kingdom, and I cannot think of a name for this new animal."
And God said, "No problem! Because I have created this new animal to be a reflection of my love for you, his name shall be a reflection of my own name, and you will call him DOG."
And Dog lived with Adam and was a companion to him and loved him. And Adam was comforted and dog was pleased. And Dog was content and wagged his tail.
After a while, it came to pass that Adams guardian angel came to the lord and said, "Lord, Adam has been filled with pride. He struts and preens like a Peacock, and believes he is worthy of adoration. Dog has indeed taught him that he is loved, but perhaps too well."
And the lord said, "No problem! I will create for him a companion who will be with him forever and see him as he is. The companion will remind him of his limitations, so he will know that he is not always worthy of adoration."
And God created Cat to be a companion to Aam. And Cat would not obey Adam, and when Adam gazed into Cat's eyes, he was reminded that he was not the supreme being. And Adam learned humility. And God was pleased. And Adam was greatly improved. And Dog was happy. And Cat didn't give a shit one way or the other!