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.
Dotted lines indicate retraction and solid bars protraction. Black bars show legs off the ground, whereas grey bars indicate dragging. L, left and R, right body side; 1, 2 and 3 fore, mid and hind legs.
