Different Sidebar Text for Different Pages

Hi there I have a few questions on adding different sidebar texts to sidebars per page.

On ONE part of my site, I have pages dedicated to individual animals. I have figured out how to change the layout to include a left sidebar to these pages (registered the sidebar, called the sidebar). The intended use for this sidebar is to provide “Quick Facts” for each animal.

I set up the first animal page just fine with the Quick Facts (Text Widget) in the left sidebar. Then I moved onto the second animal page and, of course, the same sidebar came up with the same information (Quick Facts and other things such as a thumbnail of the region the animal lives in).

I plan on having many different animal pages (100+) so I don’t want to register a new sidebar for each one of I don’t have to.

I am looking for alternatives in how to deal with it. I rather not use a pre-programmed widget or plugin to help, if I can do this by coding within the files instead. I will accept suggestions for plugins or widgets if that is all you can think of, but please explain how to use it and not just “here try this one”.

I will not link the site because it is not secure. It should be fairly easy to visualize the problem.

Once again:
Left sidebar
Text Widget with a list of “Quick Facts” on each animal
For each animal page, 100+ pages (not post)

Thanks for your time!

Edit:

I have tried Widget Logic. I can get the Text Widget to show up for an individual page. The problem I foresee is that I will have 100+ Text Widgets showing in that particular sidebar. Is this how people do it?

Edit:

I could also scrap the idea of a left sidebar with widgets in favor of somehow coding the page to have a left column. The only way I know how to do this is to make divs during the Page Creation and float the “left column div” next to the “main content div”. This means I would have to do this with each and every page, but that doesn’t seem too hard just tedious. When I initially went to research how to make “columns” in wordpress most of them were written to include another sidebar as a column instead, which I felt was silly but went along with it anyways. If anyone has any input on this, please let me know!