A very good story about a time traveler from the 21st Century who gets stranded in the Pleistocene, sort of the flip side of The Ugly Little Boy. A modern man is forced to learn primitive ways in order to survive, and discover something about what it means to be human in the process.

First published in Terry's Universe, edited by Beth Meacham, 1988.

Reprinted in:

• The Year's Best Science Fiction: Sixth Annual Collection
• The Collected Stories of Robert Silverberg, Volume 1: Secret Sharers (1992)
• The Collected Stories of Robert Silverberg: Volume Two: The Secret Sharer, Grafton 1993
• Future Primitive (1994)