Editing Diprotodon (section)

===Predation===
Due to its massive size, ''Diprotodon'' would have been a tough adversary for native carnivores. It contended with the largest-known marsupial predator ''[[Thylacoleo carnifex]]''; while ''Diprotodon'' remains that were gnawed or bitten by ''T. carnifex'' have been identified, it is unclear if the {{cvt|100|–|130|kg}} marsupial predator was powerful enough to kill an animal surpassing {{cvt|2000|kg}}. The modern [[jaguar]], at half the size of ''T. carnifex'', can kill a {{cvt|500|kg}} bull so it is possible ''T. carnifex'' could have killed small ''Diprotodon''.<ref>{{cite journal|last1=Wroe|first1=S.|last2=Myers|first2=T. J.|last3=Wells|first3=R. T.|last4=Gillespie|first4=A.|year=1999|title=Estimating the weight of the Pleistocene marsupial lion, ''Thylacoleo carnifex'' (Thylacoleonidae:Marsupialia): implications for the ecomorphology of a marsupial super-predator and hypotheses of impoverishment of Australian marsupial carnivore faunas|journal=Australian Journal of Zoology |volume=47|issue=5|page=495|doi=10.1071/zo99006}}</ref> Similar to recent kangaroos with thylacines or [[quoll]]s, juvenile ''Diprotodon'' may have been at high risk of predation by ''T. carnifex''; it and fossils of juvenile ''Diprotodon'' have been recovered from the same caves.{{sfn|Owen|1870|loc=p. 568}}

The largest predators of Australia were reptiles, most notably the [[saltwater crocodile]], the now-extinct crocodiles ''[[Paludirex]]'' and ''[[Quinkana]]'', and the giant lizard [[megalania]] (''Varanus priscus''). At {{cvt|7|m}} in length, megalania was the largest carnivore of Pleistocene Australia.<ref name=Flannery1990>{{cite journal|last=Flannery|first=T. F.|year=1990|title=Pleistocene faunal loss: implications of the aftershock for Australia's past and future|journal=Archaeology in Oceania|volume=25|issue=2|pages=45–55|doi=10.1002/j.1834-4453.1990.tb00232.x}}</ref>