Gesamtlänge aller Episoden: 16 days 7 hours 37 minutes
'Silent Spring' examined the effect of pesticides on the environment
A flightless bird, the dodo was extinct just decades after being discovered by Europeans
How scientists discovered that a deadly fungus was killing off amphibians.
The US tracked down the al-Qaeda leader to a town in northern Pakistan in 2011
How a 14-year-old boy became the youngest person executed in the USA in the 20th century
The female negotiator who agreed a deal with Muslim rebels in the Philippines.
After the fall of the Berlin Wall East German citizens stormed the secret police HQ
How some of the great stately homes of Britain were saved from demolition and decay