So who knew Fishing Spiders had such cool shadows?? I certainly didn’t! The reason for the circular feet is because (though invisible on the surface) the Fishing Spider is able to stand atop the water due to surface tension. And believe it or not this shows up in it’s shadow!
https://www.youtube.com/watch?v=fAQZRrsvzfI

More info: youtube.com

Fishing Spider’s Shadow

Fishing Spider’s Shadow

Fishing Spider’s Shadow