Check out Harald W. Krenn's current and previous haircuts:
Harald W. Krenn has had many different haircuts in the past. He is most recognized as an outstanding biologist and university teacher. However, the Austrian biologist is specially known for his extradordinary public appearances and his delightful character. Rumors and gossip about the 66-year old's haircut are continously a focus of attention of celebrity magazines and tabloids. Check out Harald W. Krenn's classic looks in the image gallery right here:
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