Ground section of a narwhal mandibular
condyle. This is an example of material which would probably be impossible to
reproduce today due to CITES rules. [CITES:
Convention on International Trade in Endangered Species of Wild Fauna and Flora
is an international agreement between governments which aims is to ensure that
international trade in specimens of wild animals and plants does not threaten
the survival of the species].
This slide was produced from tissue donated
by the late Ed Mitchell of the Canadian Dept of Fisheries and Oceans (St Anne
de Bellevue, PQ, Canada) from material from indigenous Canadian Inuit narwhal
hunting.