The Zoo Ship

"Hiding Place," see here.

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The zoo ship recalls Superman for three reasons:

(i) he had an alien zoo and Anderson's Captain Torrance refers to "'...Luna City Zoo.'" (p. 572);

(ii) one of Superman's villains collected not individual organisms but miniaturized, bottled, inhabited cities;

(iii) in another story, a spaceship fired a duplication ray at a planetary

surface so that the target organism remained on the planet while an exact duplicate of it appeared inside the spaceship, like a Star Trek transporter that did not disintegrate the original.

Although Poul Anderson's Technic History is better written either than Star Trek or than most Superman scripts, all are sf so that conceptual comparisons are appropriate.