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On May 22, 2014 the University of Louisville Residents’ Business seminar was the last group I would address as President of the Greater Louisville Medical Society. It went something like this…
I didn’t have a course like this when I was a resident.
I wish I had.
Somewhere between respiratory acidosis and cardiac preload, learning to read a spreadsheet could have been worked in.
But it wasn’t.
You’re very fortunate that your university is enlightened and generous enough to offer this course for you.
Today, with healthcare taking up about 20% of our nation’s GDP, there are many non-medical types grasping for our nation’s healthcare steering wheel.
Soon you will be finishing your residencies.
You’ll board the healthcare industry train.
You can either be a passenger or a driver.
It’s your choice.
As I prepared for today’s seminar, I thought about what I would say to myself…
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Why did T-rex have such relatively small, and seemingly useless arms? They were about the length of a man’s arms, though much more muscular.
Here is my theory: It was NOT due to Evolution from a dinosaur with longer arms or even front legs (more missing links). Rather it was due to a disproportional growth rate between front and rear limbs.
As a hatchling,  it could use 4 legs to clamber over obstacles and terrain and thru undergrowth and  the parents would have probably brought pieces (bites) of meat to the nest. Raw flesh is tough and front legs would have helped to brace the hunk of meat in order to tear off a baby size bite (ah cute, huh?).
When grown to the size of a Raptor, it seems like T-rex would have been helpless against an aggressive Raptor, at a kill for instance.
Judging from the size of adult arms, the arms would have stopped growing all together once T-rex grew a little larger than a Raptor.
After cessation of growth, the arms would still aid in taking down prey ( or stripping a carcass if he lived of the kills of other predators)
As T-rex grew to significant bulk, the arms became less and less significant. The adult could rip off raw flesh with a shift of body weight.
So, pictures of adult and baby both with diminished arms are wrong, heart warning but wrong.
An observation by Robert Dean Burlison II