Tangent: pet licensing data (which basically means dog licenses), particularly names and breeds, is always something I've wanted to analyze for fun, especially across jurisdictions, but always ends up being a huge data wrangling exercise. But MuckRock has a nice collection of completed public records requests for cities across America:

https://www.muckrock.com/foi/list/?q=pet+license&status=done...

For example, Houston's data is a 90MB Excel spreadsheet with more than a million rows, and includes columns like pet color and vaccination dates:

https://www.muckrock.com/foi/houston-113/houston-tx-pet-lice...