Series 3 Episode 1
Professor Hartley reveals how, despite animals' attempts to destroy plants by eating them, plants are winning the war
Series 3 Episode 1
How plants are winning their war with herbivores
Series 3 Episode 1
Series 3 Episode 2
How plant-eating animals have evolved to overcome plants' defences
Series 3 Episode 2
Series 3 Episode 3
How plants communicate
Series 3 Episode 3
Series 3 Episode 4
Are humans natural herbivores?
Series 3 Episode 4
Series 3 Episode 5
Will climate change compromise plants' ability to defend themselves?
Series 3 Episode 5