The eponymous suckers of this 13-episode no-dialog Spanish cartoon are the beasties who live on car windows with suckers for hands and feet. Each episode shows snippets of the life of one such beastie (Travis), including a gag in the 12th episode where he visits caveman days and spaceman days, and various Travises keep appearing next to each other.
Travis: drinking milk from the baby bottle from his own baby self) Berurrrrp!

Variants

(1)
  1. The Secret Life of Suckers by Juanma Sanchez-Cervantes (circa 2009).
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by Juanma Sánchez-Cervantes