"
Guardian Angel" post is about the strangest...
But here is another that happened a couple of years ago.
I purchased 10 little Nerite snails from on-line (Marine Depot?).
After acclimating them, I sprinkled them all about my 125 gal tank in different locations.
A few nights later I saw something hard to believe.
All ten snails had gathered together and were on glass in a perfect line playing follow the leader!
Who would have guessed that snails were "herd" animals. (staying in a group so my chances are better that someone else will get eaten instead of me.)
Anyway was a strange sight...
Didn't do them any good. All eventually got "eaten" anyway.