 A natural interpretation of this is that dinosaurs converted food into body weight very quickly, which requires a fairly fast metabolism both to forage actively and to assimilate the food quickly.Developing bone found in juveniles is distinctly porous, which has been linked to vascularization and bone deposition rate, all suggesting growth rates close to those observed in modern birds.But a preliminary study of the relationship between adult size, growth rate, and body temperature concluded that larger dinosaurs had higher body temperatures than smaller ones had; "Apatosaurus", the largest dinosaur in the sample, was estimated to have a body temperature exceeding , whereas smaller dinosaurs were estimated to have body temperatures around  – for comparison, normal human body temperature is about .