Sir David Attenborough and the Planet Earth team discover the weird world of the Cordyceps; killer fungi that invades the body of an insect to grow and diminish the insect population. Fascinating animal and wildlife video from the BBC epic natural world masterpiece ‘Planet Earth’. Visit www.bbcearth.com for all the latest animal news and wildlife videos BBC Earth Facebook http (ex-UK only) BBC Earth Twitter www.twitter.com Subscribe to BBC Earth: bit.ly BBC Earth Channel: www.youtube.com Latest BBC Earth videos: bit.ly Check out the Planet Earth playlist: bit.ly