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. 2014 Sep 25;9(9):e107982. doi: 10.1371/journal.pone.0107982

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© 2014 Munson et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

PMC Copyright notice

This image of Classic Maya bloodletting depicts a royal man using a stingray spine to pierce his penis and a noble woman pulling a thorny vine through her tongue in ritual acts of self-sacrifice. Drawing by Ian Graham [81], Yaxchilan, Lintel 17. © President and Fellows of Harvard University, Peabody Museum of Archaeology and Ethnology, 2004.15.6.5.16. Digital file #101240031.