Poisonous Post

German detectives are investigating why a deadly green mamba was mailed to an address in Berlin. A parcel had a note on it stating: "Warning! Poisonous snake." Inside was a three foot long green mamba, one of the most poisonous vipers in the world. Police are now trying to track down the sender, who attached the warning but not a return address. Green mambas are only found in African - mainly in the eastern and southern parts of the continent like Kenya and Zimbabwe. A zoo in the German capital is now looking after the shock find.