However, the authors do not focus on this result and do not explain this finding.
My main question when reading this section concerned how owners would know that certain separation-related behaviors occurred when they were away? There would be evidence for some behaviors, such as destructive behavior or defecation, but how would owners know about pacing or tail-chasing? This topic is not addressed until the Discussion section (line 395) but should be addressed here in the Methods and Materials section. Were behaviors, including different vocalizations, defined for owners? For example, what is the difference between pined, whined, and cried?