Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 56.

Västerbotten [1], 24/05/1732, ¶215:

He showed me fox pelts, some blueish, some black, and some from cross-foxes ie. yellow but going over to black on the shoulders and across the hindquarters. He had recently sent a live wolverine to the king, and he had tamed an otter so well that when holes were cut in the ice to allow it to go back into the lake it did not want to go. Nor would it eat live fish.