Recent research has shown that spotted hyenas (Crocuta crocuta) selectively scavenge bone assemblages produced by humans, in part, as a function of the amounts and types of nutrients associated with the bone. But the amounts and types of nutrients associated with bone in human produced assemblages depend on how the bone was originally processed and subsequently discarded. Modern human populations often expose bones to heat and flames during food processing and trash disposal activities. The resulting bone assemblages contain very little nutritional residues and may be less attractive to scavengers with other options. This paper examines the influence of cooking and burning on subsequent scavenger behavior. Data derived from bone assemblages created by contemporary East African Hadza hunter-gatherers suggest that hyena scavenging behavior is modified when bones are cooked or exposed to fire. These data show that bones that have been intensively exposed to heat or flames display low levels of hyena-induced surface damage. In some of the Hadza bone assemblages described here, low-density bones survive hyena ravaging in higher frequencies than might be expected from prior experimental research.