I just tested this, and despite entering the text vertically, Canvas displayed it after save as a horizontal line of text.
There is currently a feature idea open for voting that requests the ability to format rubrics. Check it out at https://community.canvaslms.com/ideas/11885-formatting-of-rubrics , and if it meets your needs, support it by voting.
The work around for this would be separating them out so it would be
Dog - yes or no
Cat - yes or no
Fish - yes or no
It's cumbersome but it does work and allows you to select more than one of the options that way.
Hope this helps,