An animal that we learnt to trust Its cunning, its planning, a must A lot of mammals are not a fan But look at the potential after building that dam The river now flows to a part of ruin Let's celebrate this genius on the wood that they've been chewing To build a habitat for this beast of some distinction Who has made life for others without bragging on completion Oh, and its also what men call their wife's nunny Strange how words switch to mean something funny!