On Google+ you really want to get in with the dancing cat crowd, so you make animated gifs.
This was on Youtube, so I used youtube-dl which is a standard Linux utility. I then used Avidemux to cut the mp4 video, and save as a series of jpg's. Then I did a 'mogrify -scale 640' to cut it down to 640. Then you use GIMP, and open the first jpg file, and you use 'save files as layers' for the others, and you can export to an animated gif.
This reminded me of whales breaching.