Cold Cases: Scientists use a variety of tools to help them identify human remains [Video and Slide Show]
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Clue: Flocks of this animal are becoming more common in suburban areas. This skull belonged to a turkey (Meleagris gallopavo). Photograph by Floto + Warner
Clue: This animal can be found lurking in shallow ponds, lakes and streams. This skull belonged to a snapping turtle (Chelydra serpentina). Photograph by Floto + Warner
Clue: Don't be fooled by the sly smile. This skull belonged to a gray fox (Urocyon cinereoargenteus). Photograph by Floto + Warner
Clue: This creature is likely to snap off a carrot or piece of grass. This skull belonged to a domestic rabbit (Oryctolagus cuniculus). Photograph by Floto + Warner
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CLUE: A medium-size wildcat. This skull belonged to a bobcat (Lynx rufus). Photograph by Floto + Warner
![Cold Cases: Scientists use a variety of tools to help them identify human remains [Video and Slide Show]](https://static.scientificamerican.com/sciam/cache/file/473FD22D-317F-428B-95130BC525381417.jpg?w=590&h=393)