this post was submitted on 13 May 2025
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[–] tal@lemmy.today 6 points 3 weeks ago* (last edited 3 weeks ago)

Pill bugs in the family Armadillidiidae are able to form their bodies into a ball shape, in a process known as conglobation.  Conglobation has evolved independently in several families; this behaviour is shared with pill millipedes (which are often confused with pill bugs),[8] armadillos, cuckoo wasps, and some extinct trilobites.

Look similar, but sounds like it developed separately.