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In this 1947 film by diving pioneer Hans Hass, marine biology work is shown with the help of early diving equipment. During the expedition Hass was able to observe and film shark behaviour and collect plant samles from underwater caves.
Alliberament: Jun 24, 1947
Temps d'execució: 84 minuts
Llenguatge: Deutsch
Estudi: Hans Hass-Filmproduktion
País: Germany
Repartiment: Hans Hass
Tripulació: Hans Hass (Director)
