There are no signs that point to the 10,000-year-old mastodon skull; no guided tours that take you past the giant sea turtle skeleton.
The specimens sit behind closed doors on the top floor of a nondescript UW-Madison building, locked in rooms next to mountain lion skins, tapir skeletons and the preserved carcasses of extinct passenger pigeons.
Hardly anyone knows about the zoological museum on the fourth floor of Noland Hall, and thatâ??s the problem.