This looked like a coyote with mange. I posted some pictures on The Next Door app and received numerous comments how it may be a dog.
We also occasionally find mangled squirrel pelts in our yard and have a place under our pool deck that could be used as a den.
https://share.icloud.com/photos/0d3jdy08S0BB8mQ9DAFVBjrdw
Not sure if this link works, but I also have video.
Segmented, tough skin layer similar to a mealworm. Moves around unlike an earthworm, jitters and spasms to get around. It uses its head and tail ends to navigate around. 1 inch long. Found in an old flower pot's soil.
Something like a beaver or muskrat
Couldn't tell as it was far in the middle of the pond
Found about an inch under dirt while pulling weeds