Sculptor Tom Otterness’ bronze Social Invertebrates are three whimsical sculptures of desert creatures, enlarged to human scale. The creatures include a millipede with a hat and shoes; a walking stick in high heels, and a scorpion holding two small men in top hats tugging at a bag of money.  The sculptures are set in a unique water-harvesting garden at the public plaza located near the southeast entrance of the North Building. ​