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When does biology seem to outstrip simple physics? Ordinary air pressure can only raise a column of water up ten metres, but a giant redwood tree can raise it more than 100 metres. The film demonstrates how...
The Amish choose to isolate themselves from other Americans because of their religious beliefs. By intermarriage they have formed an interesting population for studying genetic inheritance.
Looks the reasons for the rapid spread in the resistance of bacteria to antibiotics.
The wings of butterflies display a striking colourful and varied array of patterns, but surprisingly few genetic changes are needed to produce this diversity. Dr John Turner of the University of Leeds shows...
Discusses the important breakthroughs that led to the discovery of a gene that causes a commonly inherited disorder, Duchenne muscular dystrophy.
Farming and industry have had a major impact on the landscape. Whether derelict land is restored, or areas of beauty preserved, is largely influenced by politics and finance but ecologists have an essential...
Discusses the plant succession that takes place on sand dunes. The sand dunes at Braunton Burrows in North Devon provide the study example.
Microbes such as bacteria and fungi can adapt to extreme environments. They can tolerate, even flourish, in extreme cold, in high salinity or under hot acidic conditions. This film looks at some of the...
A rare native moth, the Pine Beauty, suddenly reached pest proportions and caused devastating damage of pine forests in the north of Scotland. The outbreak was linked to the introduction of a new species of...
There is more to hibernation than just ‘sleeping off the winter’. Observations of the Canadian ground squirrel have shown that the animal can control its sleep, even at body temperatures close to...
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