Evolution in Progress
- Synopsis
- Illustrates the process of natural selection, based on an experiment by H B D Kettlewell. The peppered moth is one of 70 species affected by pollution in the atmosphere. By 1848 the first black one had appeared and by 1955, 98% of the peppered moths in industrial areas were black. The film shows a distribution map. In Dr Kettlewell’s experiment, pupae are trapped, marked and transported to isolated areas and the movement of marked insects recorded. Other species are released at the same time. Surviving moths are caught in traps every night. The film includes slow-motion close-ups of moths being captured by birds including the flycatcher, nuthatch, song thrush and yellow-hammer.
- Language
- English
- Country
- Great Britain
- Medium
- Film; Film 16mm. silent. col. 18 min.
- Technical information
- Black-and-white / Sound
- Year of production
- 1956
- Availability
- Hire
- Subjects
- Biology
- Keywords
- evolution; insects; moths; natural selection
Credits
- Producer
- H B D Kettlewell
- Contributor
- Nikolaas Tinbergen
Distribution Formats
- Type
- Film
- Format
- 16mm
Distributor
- Name
Higher Education Film & Video Library
- services@bufvc.ac.uk
- Web
- http://bufvc.ac. External site opens in new window
- Phone
- 020 7393 1503
- Fax
- 020 7393 1555
- Address
- c/o British Universities Film & Video Council
77 Wells Street
London
W1T 3QJ - Notes
- Catalogue available from British Universities Film & Video Council.
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