He keeps ignoring this over and over since it make clear she is well aware of the science and have been involved in research in the Polar region for many years.
From her website
Polar Bears Science
35 years of Experience- Check
PHD in Zoology- Check
adjunct professor at the University of Victoria, British Columbia- Check
Published a number of research papers, articles and book- Check
In her link is the list of research she has published.
It is clear that she is QUALIFIED in Polar Bear research and debate.
Always enjoy checking the 'facts' posted by some people.
If one takes the time to read the descriptions of the research papers listed by Dr Crockford, one will find that her specific field of research is evolutionary- and Archaeozoology, not research based on present-day findings. She has published no peer-reviewed papers on modern polar bears.
For instance, a few of the papers listed on her website:
**Crockford, S. J. 2012. Annotated map of ancient polar bear remains of the world.
*Nishida, S., West, D., Crockford, S. and Koike, H. 2012. Ancient DNA analysis for the sea otter (Enhydra lutris) from archaeological sites on Adak, Aleutian Islands.
**Crockford, S.J. and G. Frederick 2011. Neoglacial sea ice and life history flexibility in ringed and fur seals.
*Crockford, S.J., Frederick, G. & Wigen, R. 2002. The Cape Flattery fur seal: An extinct species of Callorhinus in the eastern north Pacific? Canadian Journal of Archaeology
**Crockford, S.J. 2012. Directionality in polar bear hybridization. Comment (May 1) to Hailer et al. 2012. “Nuclear genomic sequences reveal that polar bears are an old and distinct bear lineage.”
**Crockford, S.J. 2004. Animal Domestication and Vertebrate Speciation: A Paradigm for the Origin of Species. Ph.D. dissertation
Crockford is an adjunct professor at UBC but she does not teach any courses on modern polar bear environments and consequences for the species. She teaches a course for Anthropology students on animal domestication and speciation and advises on matters of paleozoology and archaeozoology.