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The original was posted on /r/todayilearned by /u/TriviaDuchess on 2025-04-03 11:30:57+00:00.

Original Title: TIL: Some armadillos, like the nine-banded kind, mate in summer, but the egg delays implanting in the uterus. This pause—called embryonic diapause—lets development resume months later so babies are born in spring when survival odds are better.