1. WHAT WAS IT LIKE TO BE A DINOSAUR?
- Author
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BALANOFF, AMY M. and KSEPKA, DANIEL T.
- Subjects
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TYRANNOSAURUS rex , *X-ray computed microtomography , *FOSSIL animals , *EXTINCT animals , *NOCTURNAL animals , *INNER ear - Abstract
Recent advancements in technology, such as micro computed tomography (CT) scanning, have allowed scientists to study the sensory capabilities of dinosaurs. Neuroscientist Suzana Herculano-Houzel suggested that a Tyrannosaurus rex (T. rex) had the intelligence of a baboon, challenging the belief that dinosaurs had limited cognitive abilities. However, there are limitations to this conclusion, including the assumption that the entire braincase was occupied by the brain and the different functions of different brain regions. Studies have shown that dinosaurs had a well-developed sense of smell and likely had color vision and depth perception. While some dinosaurs may have had higher cognitive capacities than previously thought, they were probably not capable of advanced planning or coordinated social hunting like primates. The article also explores the sensory capabilities of T. rex, including its vision and hearing. The research suggests that T. rex had forward-facing eyes and a narrow snout, allowing for a wide field of vision and enhanced depth perception. The size and shape of the orbits and scleral rings indicate that many dinosaurs were active during the daytime, while the elongated cochlea suggests that some dinosaurs had hearing attuned to high-frequency sounds. The article also discusses the hypothesis that the evolution of elongated cochleas in birds and crocodilians was related to the development of parental care and the ability to hear young offspring. Overall, the research provides valuable insights into the sensory capabilities and behavior of dinosaurs. [Extracted from the article]
- Published
- 2024
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