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Big dinosaurs had teen sex

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From around age 14 to 18, T. At the peak of this spurt, T. Erickson and his team of paleontologists are the first to establish an accurate picture of how T. The scientists did this by counting growth rings in the bones of T. But while elephants have a lifespan of more than 70 years, T.
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How Male Dinosaurs Differed From Female Dinosaurs

Big dinosaurs had teen sex
Big dinosaurs had teen sex
Big dinosaurs had teen sex
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Big Dinosaurs Had "Teen Sex"

University of Alberta paleontologists have just reported the world's biggest Tyrannosaurus rex and the largest dinosaur skeleton ever found in Canada. The metre-long T. Some individuals were lankier than others and some were more robust. Scotty exemplifies the robust. Take careful measurements of its legs, hips, and even shoulder, and Scotty comes out a bit heftier than other T. Scotty, nicknamed for a celebratory bottle of scotch the night it was discovered, has leg bones suggesting a living weight of more than 8, kg, making it bigger than all other carnivorous dinosaurs. The scientific work on Scotty has been a correspondingly massive project.
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Everything You Wanted to Know About Dinosaur Sex

Sexual dimorphism—a pronounced difference in size and appearance between the adult males and the adult females of a given species, over and apart from their genitalia—is a common feature of the animal kingdom, and dinosaurs were no exception. It's not unusual for the females of some species of birds which evolved from dinosaurs to be larger and more colorful than the males, for instance, and we're all familiar with the giant, single claws of male fiddler crabs, which they use to attract mates. When it comes to sexual dimorphism in dinosaurs, though, the direct evidence is much more uncertain. To begin with, the relative scarcity of dinosaur fossils—even the best-known genera are usually represented by only a few dozen skeletons—makes it perilous to draw any conclusions about the relative sizes of males and females. And second, bones alone may not have much to tell us about a dinosaur's secondary sexual characteristics some of which consisted of difficult-to-preserve soft tissue , much less the actual sex of the individual in question.
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By Jeff Hecht. Dinosaurs did not wait to have sex — adolescent females, including Tyrannosaurus rex , started reproducing before they had finished growing to adult size, a new study shows. The findings add to evidence that adolescence was the prime of life for dinosaurs. Age at sexual maturity gives insight into the reproductive strategy and life history of species, but is far from obvious in fossils. Birds, the closest living relatives of dinosaurs, do not reproduce until they reach full adult size, as do small mammals.
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