Were Dinosaurs warm-blooded? Evidence supporting the claim that dinosaurs were warmblooded from strongest to weakest...

1.Dinosaurs had vascularized swots really similar to bird bone anatomic coordinate and unlike ectothermic reptilian bone Horner teamed up with Armand de Ricqles in an thrust to investigate bone structure as a inwardness to differentiate among endotherms and ectotherms (Morell 1987: pg11). The two scientists did studies that analyzed differences in bone structure during the harvest-home serial of a dinosaur, from conceptus to adult. finished relative anatomical studies of micro-thin sections of bone from dinosaurs, modern birds, and reptiles, the men prepargon that both(prenominal) the dinosaur bones and the modern bird bones contained vascular canals indoors the bone, for blood vessels. This tell apart suggested that there is a very monumental similarity among bird and dinosaur bone, which indicated that dinosaurs had fast-development bone. According to Horner, rapid appendage and vascular bone development ar characteristics of endothermic animals. insenti ent reptiles are marked with arrest lines, which exhibit slow mounting bone that lacks the many vascular canals (Morell 1987: pg11). 2. Dinosaurs grew quite rapidly and macro from embryo to adult Scientific research suggests that endothermic animals have high ontogeny valuates and higher metabolisms because more energy is required, succession ectotherms grow at a much slower rate because they are not capable of internal temperature control (Morell 1987: pg 7). Horner examined the embryonic, nestling, and fresh stages of hadrosaurs, and he compared the hadrosaurs growth rate to the growth series of an ostrich and a crocodile. According to his studies, he effectuate that there were profound similarities betwixt the growth rate of the ostrich and hadrosaur. He believed that because the growth series of the hadrosaur and the ostrich were growing at however the corresponding rate, the dinosaurs would have to have reasonably high metabolisms, and this evidence would nut riment the notion that the dinosaurs were en! dothermic (Morell 1987: pg10). 3.Dinosaurs migrated... ItalianzDoitBest, I agree with you that the presentment wasnt needed.

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