Oldest fossils, Tracking cholera, Playing with uncertainty and Counting species.
Oldest fossils, tracking cholera, playing with uncertainty and counting species.\nQuentin looks at the oldest fossils; tracks cholera across continents, plays games with weather forecasts and asks how many species there really are on Earth.\nThis week, Quentin Cooper looks at what may be the oldest fossils on Earth; he tracks cholera across continents, plays games with weather forecasts to understand uncertainty and asks how many species there really are on Earth.\nProducer: Martin Redfern