Editing Velociraptor (section)

===Metabolism===
[[File:Velociraptor MPC-D 100 54 skull CT scan.jpg|thumb|3D scan and nasal cavity reconstruction of ''V. mongoliensis'' skull MPC-D 100/54]]
''Velociraptor'' was [[warm-blooded]] to some degree, as it required a significant amount of energy to hunt. Modern animals that possess feathery or furry coats, like ''Velociraptor'' did, tend to be warm-blooded, since these coverings function as insulation. However, bone growth rates in dromaeosaurids and some early birds suggest a more moderate [[metabolism]], compared with most modern warm-blooded mammals and birds. The [[Kiwi (bird)|kiwi]] is similar to dromaeosaurids in anatomy, feather type, bone structure and even the narrow anatomy of the nasal passages (usually a key indicator of metabolism). The kiwi is a highly active, if specialized, flightless bird, with a stable body temperature and a fairly low resting metabolic rate, making it a good model for the metabolism of primitive birds and dromaeosaurids.<ref name=paul2002 />

In 2023, Seishiro Tada and team examined the nasal cavities of [[ectotherm]] (cold-blooded) or [[endotherm]] (warm-blooded) species, in order to evaluate the [[thermoregulatory]] physiology of non-avian dinosaurs compared to these groups. They found that the size of the nasal cavity relative to the head size of extant endotherms is larger than those of extant ectotherms, and among taxa, ''Velociraptor'' was recovered below the extant endotherms level by reconstructing its nasal respiratory cavity. Tada with team suggested that ''Velociraptor'' and most other non-avian dinosaurs may not have possessed a fully or well-developed nasal thermoregulation apparatus as modern endothermic animals do.<ref>{{Cite journal|last1=Tada |first1=S. |last2=Tsuihiji |first2=T. |last3=Matsumoto |first3=R. |last4=Hanai |first4=T. |last5=Iwami |first5=Y. |last6=Tomita |first6=N. |last7=Sato |first7=H. |last8=Tsogtbaatar |first8=K. |year=2023 |title=Evolutionary process toward avian-like cephalic thermoregulation system in Theropoda elucidated based on nasal structures |journal=[[Royal Society Open Science]] |volume=10 |issue=4 |at=220997 |doi=10.1098/rsos.220997 |pmid=37063996 |pmc=10090882 |bibcode=2023RSOS...1020997T |doi-access=free }}</ref>