[Enlightened1]

Well whatever is in the lizards mouth that digests food is what was sent.

[Wiser now]

My daughter keeps lizards. they are fed live food that is not digested in the mouth. They don’t have saliva, they have a kind of mucus. At a lab, the difference between saliva and animal mucus would be glaring.

[Albion Wilde]

Well whatever is in the lizards mouth that digests food is what was sent.

Maybe, failing initially to get results, they found some DNA on the stem of the swab in the fingerprints of the person who held the swab to the lizard's mouth. Maybe she is Ashkenazi and Asian.