Get a glimpse of “nature’s own engineer” hard at work. A young male beaver must defend his new family against hungry predators, mischievous river otters and the ever-impending threat of winter.
- Runtime: 32 min
- Released: 19 Jul 1950
- Genre:Documentary , Short, Family
- Starring: Winston Hibler, Mogens Lind
- Writer: Lawrence Edward Watkin, Ted Sears
- Director: James Algar
- Available countries: United States