Polar bear cub Knut has been given 15 personal bodyguards as fears for his safety grow.
Berlin Zoo has reviewed Knut's security requirements after the cuddly cub received a sinister hand-written death threat.
On the look out after a swimThe number of Knut's minders has been trebled and all have been equipped with walkie-talkies.
Dressed in orange bibs, the polar bear bodyguards will patrol the area around Knut's enclosure.
They are to monitor any suspicious behaviour amongst the hordes of fans who flock to see the little bear every day
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