Harry Wu was a young student jailed for nearly 20 years in Communist China.
2/5 Bettany listens to a rat laughing and giggles at schoolboy jokes from Ancient Mesopotamia.
Kathy Willis examines how we are building future resilience into our modern crops.
2/4 Amanda explores three cases in which men fight and kill each other in the name of honour.
Kathy Willis assesses the cultural value of ecosystems for our health and well-being.
Prof Kathy Willis examines new insights into plants as regulators of our planet.
How DNA analysis is providing a new window into the evolution of the tropical rainforest.
In April 2004, the murder of a young student provoked a wave of protests in Argentina.
Kathy Willis explores DNA fingerprinting and a new tree of life for plants.
1/5 Bettany Hughes' archaeology of philosophy. Who came up with the idea of an idea?
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