Here’s an interesting take on the soft tissue issue: Brian Thomas writes Can this Dog Sniff out Fossils?
Migaloo is a dog from Queensland, Australia, that has been trained as an “Archaeology dog” by dog trainer Gary Jackson. She sniffs for human remains, and apparently holds the record for the oldest bones found via this method – a 600-year-old Aboriginal grave. Jackson also claims to have trained a cancer-detecting dog, called Chance, but he has recently retired his research program due to expense and difficulty in finding test subjects. Continue reading