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New Research Shows Humans Could Outrun T. Rex
bongey writes: T-Rex would have a hard time even catching an average human running, much less Usain Bolt or Jeeps, without shattering their legs into pieces. New research based on simulations that include the load on the bones show that T-Rex would have a hard time running faster than 12 miles per hour (5.4 meters per second) without bones breaking. The new research correlates to speeds calculated from adolescence sized T-Rex dinosaur footprints in 2016, which showed walking speeds to be only 2-5mph, and estimated running speeds 11-18 mph. Gizmodo notes that while T. rex was unable to pursue its prey at high speeds, high speed is a relative term. "For reference, typical humans can sprint anywhere between eight to 15 miles per hour (elite athletes can exceed 20 mph). So to outrun a T. rex, many animals -- or fictional humans -- would still have to run like hell."
If you click through and read the article, you will find a discussion that explains that this entire conclusion was based on a rare set of footprints that were found to be of a certain spacing. They then started a variety of different extrapolations, covering values such as estimating the height of the dinosaur's hips above the ground, the weight of the dinosaur and so on.
Their determination that this set of tracks came from a Tyrannosaur was made on the basis that there is no knowledge of any other matching species in that area at that time.
Having measured the stride of this dinosaur and estimated the height of its hips above the ground, they then used measurements taken from "living, walking bipeds" to make their claim.
Now, I'm all in favour of scientific research and analysis. I love reading about cutting edge insights to the world around us. I think it enriches our lives. On the other hand, when I read this article published on the Science website, the first thought that came to me was, "There are an awful lot of assumptions and approximations in here..."
They don't know, definitively, that this was a T-Rex.
They don't know what it was doing at the time the tracks were made [for example, if it had been stalking prey, maybe it was treading softly, moving slowly, so perhaps it's steps were uncharacteristic.
They don't know whether it was injured, or weak, or unwell. You can't determine the nutritional state of a hundreds-of-millions-of-years-dead dinosaur from a footprint, can you?
They are also assuming that things like the metabolic efficiency, the muscular strength and even the bone density of dinosaurs are all perfectly equivalent to what we see today. In other words, they are cherry-picking facts to fit their theories.
I am absolutely certain that there is some great research and excellent work being undertaken by the Team that made this announcement, but this is far, far short of science. This is assumption and theory and conjecture based upon an entirely incomplete fact base.
In one sense it is not worth being concerned over one-off articles like this. In the fullness of time we would expect scientific peer review to challenge and refine both the method of analysis and the final conclusions of this piece of work. Well, hopefully. The concern with this specific story is evidenced by the fact that it has been picked up and linked here, on slashdot. Which means it will be picked up by other science and tech news outlets and perhaps even broader news media. This is fine if the original work is robust and defensible, but in this case [at least as far as the original piece goes] that does not appear to be true... Oh well.
If running from a T-Rex was an actual concern, I would venture most people would be fit enough to pull it off.
...and promptly crashes into a tree which, according to your assertion, he cannot see.