Brown bears, black bears, and various smaller mammals are represented in the cave’s deposits.

Some of this material is from periods predating human occupation of the island, providing a paleontological record of the post-glacial recolonization of the island by terrestrial fauna following deglaciation.

Some of it is associated with human occupation and may represent the remains of species hunted or otherwise exploited by the people who used the cave.

The cave’s record of terrestrial fauna, combined with the human isotopic evidence for marine diet, paints a picture of a comprehensive environmental context.

The island’s terrestrial ecosystem — its bears, deer, and other mammals — was present and potentially relevant to human subsistence, while the marine environment provided the primary nutritional foundation as the isotopic evidence indicates.