It is reported that the following edition of the Book of Genesis
was discovered in the Dead Seal Scrolls.  If authentic, it would
shed light on the question, "Where do pets come from?"

And 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 will create a companion for you
that will be with you forever and who will be a reflection of my
love for you, so that you will know I love you, even when you
cannot see me.  Regardless of how selfish and childish and
unlovable you may be, this new 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 it was a good animal. And God was pleased.

And the new animal was pleased to be with Adam and he wagged
his tail.  And Adam said, "But Lord, I have already named all the
animals in the Kingdom and all the good names are taken 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 will 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 God was pleased.  And Dog
was content and wagged his tail.

After a while, it came to pass that Adam's guardian angel came to
the Lord and said, "Lord, Adam has become filled with pride.  He
struts and preens like a peacock and he believes he is worthy of
adoration.  Dog has indeed taught him that he is loved, but no one
has taught him humility."

And the Lord said, "No problem!  I will create for him a companion
who will be with him forever and who will 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 Adam.  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 Cat did not care one way or the other.