A newly sheared Pete Wentz cradles son Bronx Mowgli, 10 ½ months, at the San Diego Zoo on Wednesday as wife Ashlee Simpson-Wentz peruses a table of tie-dye t-shirts.

The couple were in town for Billboard’s Mobile Entertainment Live! Fall 2009 Conference the night before, where Pete served as keynote speaker.

Pete and Ashlee — married in May 2008 — spent about an hour at the Zoo before returning home.