> platypus Platypi were also mascots for flexible inheritance in OO circles for demonstrating the problems with monotonic, non-overidable inheritance, like only calling parent methods through parent typed pointer, in C++ 1.0. I have a pedagogic puppet somewhere, from back when I was teaching from Budd's book http://www.powells.com/biblio?PID=24750&cgi=product&isbn=0201824191 (ostrich and penguin are less exceptional)
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