Bee-eaters use elephants to help them catch insects | Planet Earth II
As a bull elephant strides through the grasslands of Botswana, a flock of bee-eaters jostle to grab the insects disturbed by its passing.
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Selective breeding and the 'Green Revolution' | Botany: A Blooming History
Norman Borlaug used selective breeding techniques to improve wheat production in Mexico. He produced plants which had large seed heads and hence a good yield. However, the plants were too tall and were prone to falling over (lodging).
Selective breeding | Countryfile
For thousands of years we have been selectively breeding farm animals to make them more and more productive. But in recent years there has been growing concern that pushing profitable traits has led to welfare problems.