T-rex's intense 'growth spurt' in early days contributed to its gigantic size: Study

Researchers have found that gigantic meat-eating Tyransaurus rex depicted extensive growth records due to a massive growth spurt that helped species achieve mammoth sizes in its early teen days compared with or ropod families. In a study published on vember 24 in journal Proceedings of Royal Society B, researchers studied fossils and closely examined growth rings of a group of bipedal disaurs. In a unique finding, researchers observed that predator Tyransaurus rex showed sudden and intense growth, aging into a gigantic 42 feet long disaur from sut to tail and weighing close to 16,000 pounds.

"We wanted to look at a wide swath of different ropods, two-legged, carnivorous disaurs, in order to understand broader patterns of growth and evolution in group," Tom Cullen, lead author of a new study in Proceedings of Royal Society B said.

Scientists stated that evolution of gigantism among disaurs and ir huge sizes has long been a subject of intrigue. Researchers aimed to find if largest bipeds, ropods, all grew into gigantic structures at same time by observing fossil record. performed multi-element histological analyses on sample of eight disaurs from ropod families, with a unique focus on tyransaurids and carcharodontosaurids. “We find that in skeletally mature gigantic ropods, weight-bearing bones consistently preserve extensive growth records, whereas n-weight-bearing bones are remodelled and less useful for growth reconstruction,” scientists informed. 

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[Lead author of study Thomas Cullen at Field Museum. Credit: Twitter/@cullen_thomas]

Furr, according to study, growth spurt observed in T.Rex specifically was different from pattern observed in smaller ropods and some or disaur clades. Lead author of study Tom Cullen said, “We particularly wanted to understand how some of m got so big — is way T rex grew only way to do it?” Cullen added that scientists collected samples with assistance of Chicago’s Field Museum n-curator of disaurs, Pete Makovicky. giant carcharodontosaurid fossils were used as samples excavated along with or two Argentinian colleagues Juan Canale and Sebastian Apesteguía.

"We wanted to look at a wide swath of different ropods, two-legged, carnivorous disaurs, in order to understand broader patterns of growth and evolution in group,” Cullen explained.

Observed variety of different bones

Scientists n studied a variety of different bones from a vast range of skeletons to find out how some disaurs got this humungous. “All se questions about how ropods grew could impact our understanding of evolution of group,” researchers explained. Through this study, many or critical questions were answered such as how old animal is, how much it's growing each year and a number of or factors. 

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