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“Analyzing them revealed residues containing medullary bone deposits in the marrow that served to produce eggshells during the laying season in spring. This indicates that the chickens were slaughtered in spring.”
-Study authors Achim Lichtenberger and Oren Tal, in a press release.
This new level of detail helps clarify the timeline of Hasmonean conquests, and also shows how the changing of the seasons could have influenced behavior in the ancient world.