Gasterosteus aculeatus (Gasterosteidae) - Balz und Ablaichen (1965)
Chiqarilgan vaqti: Jan 01, 1965
Ish vaqti: 7 daqiqa
Janr: Documentary
Yulduzlar:
Crew: Heinz Sielmann (Producer), Heinz Sielmann (Director), Georg Theilacker (Director of Photography)