Assertion: great auk's egg | /r/HasProperty | laid in close proximity
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Source sentences:
text: The fact that Great Auk eggs exhibit such enormous variation in the pattern, distribution and density of their maculation (see images in Tomkinson & Tomkinson 1966, Fuller 1999) is consistent with the idea that, like the two guillemots, eggs laid in close proximity risked becoming mixed up, and a unique maculation signature may have enabled parents to recognize and retrieve their own egg (see Tschanz 1968).