Dr Varley explains how success in evolutionary terms means passing on of an individual's genes to descendants. For many animals this involves recognition of other individuals of the right speicies and sex so that viable offspring may be produced.
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Duration: 00:00:28
Keyword(s): Evolution, genetics, natural selection.
Contributor(s): Dr Peggy Varley
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Footage description: B/W. Varley in the studio speaking to camera.
Master programe code and title: S100/19 Natural selection
Master programme recording date: 30/05/1971
Master programme first presentation: 1971
Master programe filename: S100_1971X_BX_V019.avi
Master programme production number: JOUZ373H
Available to public: yes