The ornamental design for an animal harness, as shown and described.
FIG. 1 is a top right rear perspective view of an animal harness, showing our new design in condition of use.
FIG. 2 is a top right rear perspective view thereof.
FIG. 3 is a left elevational view thereof.
FIG. 4 is a right elevational view thereof.
FIG. 5 is a front elevational view thereof.
FIG. 6 is a rear elevational view thereof.
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken line showing of a dog in FIG. 1 depicts environmental structure only and forms no part of the claimed design. The broken lines in FIGS. 1-8 depict portions of the animal harness that form no part of the claimed design.