Animal Care uses default WordPress gallery shortcode. Documentation about it can be found there http://codex.wordpress.org/Gallery_Shortcode
Large gallery
Medium gallery
[divider type=”type_1″] [alert-info] List of possible attributes:
[/alert-info]
[toggle title=”Get the code” hidden=”true”] [gallery link="file" order="DESC" columns="3" include="1,2,3,4,5,6"] [/toggle]