Context:

The hosts are discussing Beth Shapiro's previous appearance on the show and her work with ancient DNA and mammoths. They mention 'How to clone a mammoth' as a book they discussed with her, and note that her husband is a Neanderthal researcher. Beth Shapiro is identified as a researcher they've collaborated with on ancient DNA studies.

Context:

During a discussion about rewilding and creating hybrid or genetically engineered animals, one of the speakers references 'that old book about the island of Dr Moreau' where a character creates weird animals on an island. This is used as a cautionary comparison to modern attempts at recreating extinct species.