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	The "T-Rex" was a huge dinosaur.				The Tyrannosaurus Rex was one of the biggest dinosaurs<br>to ever walk Planet Earth.									
	It is the most<br>famous of them all.				It's probably the most famous one too.<br>									
	Scientists think it ran super fast.				Scientists think this strong predator could run very fast to catch<br>its food.									
	This<br>is how it caught food.				Yet, it likely couldn't do everything well.									
	It was a big, strong hunter.				<<<<, 800, 0									
	<<<<, 800, 0				Today, computer modeling shows that the T-Rex had a hard<br>time making fast turns.									
	But, new computer tests show the T-Rex could not make<br>fast turns.				It could move super fast in a straight line,<br>sure.									
	Moving straight was easy.				But, turning was difficult for the giant animal.									
	Turning was hard.				<<<<, 800, 0									
	<<<<, 800, 0				The T-Rex turned slowly mainly because of its huge weight<br>and long body.									
	The T-Rex turned slowly because it was so heavy.				A full-grown T-Rex was as heavy as an elephant, with<br>a weighty head that hung forward.									
	It<br>was also very long--40 feet!				It needed a long tail for balance,<br>so it wouldn't fall over.									
	A big T-Rex weighed as much<br>as an elephant.				In total, T-Rexes grew to be 40 feet long!									
	It had a big head that hung forward.				<<<<, 800, 0									
	The<br>animal needed a long tail so it didn't fall over.				All that weight created inertia when the T-Rex ran quickly.<br>									
	<<<<, 800, 0				Inertia is the force that keeps heavy things wanting to continue<br>moving forward once they start going.									
	Heavy things like to keep moving when they start going. <br>				Because the T-Rex's weight<br>was spread out, spinning around took a lot of work.									
	It's hard for them to stop if they are moving really fast.				<<<<, 800, 0									
	Because<br>the T-Rex was so long, it took a lot of work for it to spin.				If a smaller dinosaur quickly turned, the T-Rex could not follow<br>right away.									
	<<<<, 800, 0				It had to slow down, often completely stop, and carefully<br>turn on its feet--an action that always took a few seconds.									
	A small dinosaur could turn quickly and get away from the<br>T-Rex.				<<<<, 800, 0									
	That's because the T-Rex had to slow down, stop, and slowly<br>turn its big feet.				Even if it was not a fast spinner, the T-Rex was still quite a<br>scary hunter.									
	Doing so took a few seconds--at least.				It was strong and smart--likely either sneaking up on<br>its prey, or running straight at it, with a lot of momentum and<br>speed.									
	<<<<, 800, 0				Alas, skilled at turning or pivoting, it was not.									
	Even though it turned slowly, T-Rex was still scary!				<<<<									
	It was<br>strong and smart.													
	The beast likely snuck up on its food or ran<br>straight at it.													
	But, a good turner, it was not.													
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