Not only is it weird to see fish on land in general, but it is the way they are literally using their fins to walk, not just flop around, and strategically make it to water on the other side of the road. Plus, they are doing so in a very orderly line.
Headstones are usually used to signify the final resting place of a person. In Paradise, Texas you'll find a headstone that marks the final resting place of just an arm.