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3 Evolution

No two islands in the Galapagos are the same.  The imperceptible drift of a continental plate keeps each island biologically isolated.  David Attenborough explores this evolutionary crucible, encountering tortoises that weigh up to half a tonne, finches that use tools and lizards that communicate using press-ups; for Darwin, this was all evidence for his theory of evolution.  We see the final footage of the world famous tortoise fondly known as Lonesome George, the last survivor of his species. David Attenborough was the last person to have ever filmed with him. 

Darwin’s famous visit had a downside – the arrival of man.  David investigates the impact we’ve had in these islands, as our influence is a double-edged sword.  We’ve disrupted the natural balance but he also believes Darwin would be thrilled with the advances we have made in science.  We’re also now uncovering evidence that evolution is more rapid than Darwin could ever have imagined.  Whatever wonders the Galapagos Islands hold today, they are only a hint of what awaits them in the future.