28:13

Ninja Documentary - In Search of the Ninja Part 1

49:42

Ninja: The Shadow Warriors Of Feudal Japan | Ancient Black Ops

29:26

Ninja Skills by Antony Cummins

57:01

"Out Of The Shadows" - "Ninjutsu Calgary" Calgary, Alberta

48:06

The Siberian cousins of Native Americans - The Ket People

28:43

Ninja - Audio Book

20:20

Shoninki V Bansenshukai

58:14

The History of Dogs: evolution, archaeology, and mythology | Full lecture (University of Wyoming)