In Peter Watts' scifi novel "Blindsight"[1] there is a description of aliens which could program their bodies on the fly to move only during the saccades of one human observer in order to hide themselves[2].

[1] https://en.wikipedia.org/wiki/Blindsight_(Watts_novel)

[2] http://www.rifters.com/real/shorts/PeterWatts_Blindsight.pdf page 236

What an awesome concept! Thanks for the link, I think I'll be adding this to my reading list.

I love that book so much. I recommend it often but nobody ever takes me up on it.

Thanks for the link!

I had to go to the mirror and try the little experiment described in the intro.

Not totally convinced yet, gotta try with someone as witness. ;)