All cultures are equal.
Some things never change: http://www.google.com/#hl=en&sclient=psy-ab&q=mexican+cartels+decapitation&oq=mexican+cartels+decapitation&gs_l=hp.3..0j0i30l3.1607.7341.0.75126.96.36.199.0.0.0.2380.4368.0j4j4j1j9-1.10.0.les%3Bcpsugrpq2..0.0...1.1.hLOPCMJVPLg&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.&fp=c67092ad9b82b728&biw=1024&bih=381
Some cultures are more equal than others...
They did remove the heart, but also had skull racks, and gave the bodies to the people for meat. Somewhere I saw a drawing of a skull rack with a large number of skulls on it. I don’t know if it was a codex or something Spanish. When I studies in Mexico, I read concurrently Cortez’s 5 Letters to King Carlos V, and Bernal Diaz’ (his lieutenant) account of the conquest both in Spanish. Very interesting and very bloody.