Researchers at the Georgia Institute of Technology studied the physical dynamics of how dogs shed water from their bodies, discovering an underlying mathematical principle that could improve the spin cycle in laundry dryers. Bio-inspired engineering is full of delightful analogies like this, between human technological goals and the often overlooked and underappreciated capabilities of the living world. At the core of bio-inspired engineering, analogical problem solving forms the focus of this lesson, explored through mental thought games and activities.