Nature

Dogs That Changed the World: Dogs By Design

Passport Season 25 Episode 12 | 52m 59s

The second hour of "Dogs That Changed the World" details the explosion of the basic working dog types into the roughly 400 breeds known today; explores concerns about today’s competitive breeding and its effect on dogs’ health and well-being; and outlines dogs’ potential role in medical care for human beings.

Aired: 04/29/07

Rating: NR

Video has closed captioning.

Buy Now:

Problems Playing Video?

Major support for NATURE is provided by The Arnhold Family in memory of Henry and Clarisse Arnhold, Sue and Edgar Wachenheim III, The Fairweather Foundation, the Kate W. Cassidy Foundation, Kathy Chiao and Ken Hao, the Lillian Goldman Charitable Trust, Charles Rosenblum, the Filomen M. D’Agostino Foundation, Rosalind P. Walter, Sandra Atlas Bass, Doris R. and Robert J. Thomas, The Hite Foundation, Gary and Christy Roeber, The Sun Hill Family Foundation in memory of Susan and Edwin Malloy, The Arlene and Milton D. Berkman Philanthropic Fund, the Bradley L. Goldberg Family Foundation, the Anderson Family Fund, The M. & H. Sommer Foundation, Ron Hull, by the Corporation for Public Broadcasting, by PBS, and by Viewers Like You.