Vivarium

FIG. 1 is a top, front, right side perspective view of a vivarium showing the new design;

FIG. 2 is a bottom, rear, left side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in the drawings are included for the purpose of illustrating portions of the vivarium that form no part of the claimed design. The dot-dash-dot boundary line defines the bounds of the claimed design and forms no part thereof.