Fictional paperback by Leah Rewolinski in which a parody version of the Star Trek crew sets out to find Laika, who is somehow still cruising the universe, apparently riding in Sputnik I for some reason.

The cover text reads:

STAR WRECK 7, AN UNAUTHORIZED PARODY
ONCE AGAIN, THESE ARE THE VOYAGES OF THE STARSHIP ENDOCRINE -- TO BOLDLY GO TO THE DOGS!
SPACE: THE FIDO FRONTIER