Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Summed scores for puppies from the PuppyFIDO test showing differences between the three treatment groups (control, held, and ENS) for puppies with cropped ears (Yes) and uncropped puppies (No). Higher scores represent more affiliative behaviors in response to stranger’s approach.
