Columbia dogs sniff their way through competition

Thursday, August 9, 2012 | 9:34 p.m. CDT; updated 3:53 p.m. CDT, Friday, August 10, 2012

COLUMBIA — Cardboard boxes of different sizes lay scattered on the ground. A light brown Pembroke Welsh corgi weaves through the boxes, sniffing the air and periodically dropping its nose to smell the outside of a box. The dog stops at a smaller box and sticks its nose inside.