Sebelisa Ak'haonte ea hau ea MAHALA!
Laeborari ea rona ea libaesekopo le livideo e ka tsamaisoa kapa ea jarolloa ke litho feela
Tsoela pele ho shebella MAHALA ➞Ho nka tlase ho motsotso o le 1 ho saena ebe o ka natefeloa ke lifilimi le lihlooho tsa TV tse se nang moeli.
Ethologie der Graugans 1950 Phihlelo ea mahala ea mahala
The film gives a survey on innate behaviour patterns of the grey-lag goose. The first part shows reproductive behaviour. In the second part some behaviour patterns of gosling being imprinted on their human foster parent are shown: following reaction, separation of two flocks according to their imprinting, response to the alarm call and landing "by order" of the flying young.
Nako ea nako: 13 metsotso
Boleng: HD
Lokolla: Jan 01, 1950
Naha: Germany
Puo: No Language
