Editing Tyrannosaurus (section)

====Cannibalism====
Evidence also strongly suggests that tyrannosaurs were at least occasionally cannibalistic. ''Tyrannosaurus'' itself has strong evidence pointing towards it having been cannibalistic in at least a scavenging capacity based on tooth marks on the foot bones, humerus, and metatarsals of one specimen.<ref name="HornerCurrie_et.al._2010_Trex_cannibalism">{{Cite journal |last1=Longrich |first1=N. R. |last2=Horner |first2=J. R. |last3=Erickson |first3=G. M. |last4=Currie |first4=P. J. |year=2010 |title=Cannibalism in ''Tyrannosaurus rex'' |journal=PLOS ONE |volume=5 |issue=10 |page=e13419 |doi=10.1371/journal.pone.0013419 |pmc=2955550 |pmid=20976177|bibcode=2010PLoSO...513419L |doi-access=free }}</ref> Fossils from the [[Fruitland Formation]], [[Kirtland Formation]] (both Campanian in age) and the Maastrichtian aged [[Ojo Alamo Formation]] suggest that cannibalism was present in various tyrannosaurid genera of the San Juan Basin. The evidence gathered from the specimens suggests opportunistic feeding behavior in tyrannosaurids that cannibalized members of their own species.<ref>{{Cite web|url=https://www.researchgate.net/publication/348002335|title=NEW EVIDENCE FOR CANNIBALISM IN TYRANNOSAURID DINOSAURS FROM THE UPPER CRETACEOUS (CAMPANIAN/MAASTRICHTIAN) SAN JUAN BASIN OF NEW MEXICO|website=ResearchGate|access-date=May 8, 2021|archive-date=November 10, 2021|archive-url=https://web.archive.org/web/20211110091047/https://www.researchgate.net/publication/348002335_NEW_EVIDENCE_FOR_CANNIBALISM_IN_TYRANNOSAURID_DINOSAURS_FROM_THE_UPPER_CRETACEOUS_CAMPANIANMAASTRICHTIAN_SAN_JUAN_BASIN_OF_NEW_MEXICO|url-status=live}}</ref> A study from Currie, Horner, Erickson and Longrich in 2010 has been put forward as evidence of cannibalism in the genus ''Tyrannosaurus''.<ref name=HornerCurrie_et.al._2010_Trex_cannibalism/> They studied some ''Tyrannosaurus'' specimens with tooth marks in the bones, attributable to the same genus. The tooth marks were identified in the [[humerus]], foot bones and [[metatarsal]]s, and this was seen as evidence for opportunistic scavenging, rather than wounds caused by intraspecific combat. In a fight, they proposed it would be difficult to reach down to bite in the feet of a rival, making it more likely that the bitemarks were made in a carcass. As the bitemarks were made in body parts with relatively scantly amounts of flesh, it is suggested that the ''Tyrannosaurus'' was feeding on a cadaver in which the more fleshy parts already had been consumed. They were also open to the possibility that other [[Tyrannosauridae|tyrannosaurids]] practiced cannibalism.<ref name=HornerCurrie_et.al._2010_Trex_cannibalism />