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				deer physcology
			 
 deer hate fishing line or string fences  which you string up
 on an angle /    so the fence is  8 feet wide  then they cannot
 simply jump up and over as they do with livestock barbed wire....
 
 they end up  STUCK in the middle
 and entangled in the lines and then it increases
 their fear .... making them never wanting to return...
 
 similar to how things Horses cannot see around their back legs and rear
 send them into a panic.....
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