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Life is Random

Posted July 30, 2014 7:34 AM by HUSH
Pathfinder Tags: dinosaur extinction life Mars

I'm sure that by now you've heard yet another Jurassic Park film will be released next year. This time around the dinosaurs run amok and eat people, as opposed to the other films, where the dinosaurs run amok and eat people. But it remains an intriguing topic, so I'm sure the film will do well. Dinosaurs capture the imagination with equal parts sci-fi and horror, while reminding us the Earth was not always ours, and one day will not be ours any more.

Consider the recent discovery that dinosaurs nearly survived the asteroid that drove the giant lizards to extinction 66 million years ago. In fact, had the asteroid impacted at a different time, give or take a few million years, then dinosaurs likely would have survived, and mammals--and therefore humans--would have never thrived. The asteroid touched down just as dinosaur evolution entered a fragile period where carnivores had overhunted herbivores, meaning biodiversity and adaptabilities were low. As one of the lead authors noted:

"If the asteroid didn't hit…there is a good chance they would still be with us today. And if dinosaurs didn't go extinct, then mammals would have never had their opportunity to blossom. So if it wasn't for that asteroid, then humans probably wouldn't be here."

Naturally, this is where I remind you that life is completely by chance. There have been five extinction events in the Earth's brief 4.5 billion years, and scientists currently warn we're on track for number six. Then again, once one extinction event is over the countdown for the next one begins, so in the Sylvia Plath mindset it can be argued we're always on track for extinction.

The only difference is that this will be Earth's first species-induced extinction. This has been deemed the Holocene extinction, and upper estimates have determined humans may be responsible for 140,000 species extinctions per year. Climate change has been beaten to death in the media, and I don't plan on spending more than this sentence on its effects, because ultimately it's too late to stop.

That doesn't mean the human race is doomed. We're by far the most intelligent species to have dominated the planet, and when average Earth temperatures exceed 120° F (sometime before the year 2300) hopefully we'll have the technology straightened out to thrive in such conditions, along with all of the remaining animal inhabitants.

But we'll just be delaying the inevitable, right? Many people hope that Mars holds the secret to surviving a planetary extinction. Most scientists agree that at some point Mars was cultivating life--bacteria and microorganisms, but life nonetheless. At some point Mars lost its atmosphere, but some speculate that life may continue to thrive in methane vents or carbon dioxide geysers; NASA launches the geyser hopper lander in 2016 to investigate.

Life is random. Postpone the climate change and await the asteroid. There is no winning in evolutionary roulette.

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#1

Re: Life is Random

07/30/2014 5:38 PM

"Life is random. Postpone the climate change and await the asteroid."

Or the next eruption of a super volcano like Yellow Stone Park.

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#2

Re: Life is Random

07/30/2014 7:31 PM

That doesn't mean the human race is doomed. We're by far the most intelligent species to have dominated the planet, and when average Earth temperatures exceed 120° F (sometime before the year 2300) hopefully we'll have the technology straightened out to thrive in such conditions, along with all of the remaining animal inhabitants.
The current world temperature average is about 57 degrees F. I find it hard to believe 120 F average in less than 300 years from now.

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#3
In reply to #2

Re: Life is Random

07/30/2014 11:31 PM

Just try to be scared! At least a little bit!

Will ya?

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#4
In reply to #3

Re: Life is Random

07/31/2014 5:14 AM
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#6
In reply to #3

Re: Life is Random

07/31/2014 12:52 PM

"In the space of one hundred and seventy-six years the Lower Mississippi has shortened itself two hundred and forty-two miles. That is an average of a trifle over one mile and a third per year. Therefore, any calm person, who is not blind or idiotic, can see that in the Old Oölitic Silurian Period, just a million years ago next November, the Lower Mississippi River was upwards of one million three hundred thousand miles long, and stuck out over the Gulf of Mexico like a fishing rod." - Mark Twain

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#7
In reply to #3

Re: Life is Random

07/31/2014 10:47 PM

It's really hard to look convincingly sacred when your trying to keep from laughing!

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#5

Re: Life is Random

07/31/2014 8:58 AM

In fact, had the asteroid impacted at a different time, give or take a few million years, then dinosaurs likely would have survived, and mammals--and therefore humans--would have never thrived.

Actually, you have given the people who say our path is guided by a greater being a very sound basis for argument. Pretty darn co-incidental timing don't you think?

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#11
In reply to #5

Re: Life is Random

08/02/2014 7:12 PM

How would you define a 'dinosaur' ?. No, not a literal definition.

I'd venture we are all descended from some odd critter that lived in a hole in the ground.

Current day 'birds as being descended from dinosaurs' is old hat. It seems more likely that burrowing critters survived whatever happened. Squirrels could have done this .

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#12
In reply to #5

Re: Life is Random

08/03/2014 10:14 PM

"... then dinosaurs likely would have survived ..."

Having worked for several I can attest that the timing of the asteroid impact had little to do with it.

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#13
In reply to #12

Re: Life is Random

08/04/2014 8:05 AM

You're replying to the wrong person- that is a direct quote from the original post - not my thoughts. The original post was trying to present a train of thought saying everything is random, and instead presented a darn good case for someone who believes in guided destiny.

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#14
In reply to #13

Re: Life is Random

08/04/2014 2:14 PM

Mate, it sounds to me like you need a good cheering-up. Here, I'm buying.

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#8

Re: Life is Random

08/01/2014 2:53 PM

The best part of Jurassic park 1 (for me anyway) was when the T Rex ate the lawyer, everyone in the theater started clapping.

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#10
In reply to #8

Re: Life is Random

08/01/2014 4:25 PM

Of COURSE everyone applauded that.

Just like in the Godzilla movies (the REAL ones, made in Japan, not the American 're-imaginings'), look closely, there is one building Godzilla topples in EVERY movie when he rampages through Tokyo, that building's destruction is even rather prominently featured. That building's destruction gets a roar of cheers from the normally disciplined and reserved Japanese audiences. Why you ask? That building houses Japan's equivalent of the IRS.

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#9

Re: Life is Random

08/01/2014 3:18 PM

Looking at the climatic conditions of past pre-extinction periods and the current one, it would seem a general warming trend, as we are predicting we are causing, may well spawn increased life forms, not decreased. The Cambrian and Carboniferous period were very hot and damp and even flooded with volcanic gasses, yet life was the most abundant and diverse then. Animal life flourished as did plant life. Earth was one big rain forest. Remember, we are living in a rather cool period.

The real issue is what the warming is doing to human developments near coast lines and in deserts, not the animal species. Human extinction is far more likely than animal extinction. Get it good and warm and damp again, and certain animal species, and plant species will thrive. Maybe not the ones we prefer, and we may lose some cold weather mammals, but definitely some species will do better in those conditions and new forms will evolve. Reptiles and amphibians will flourish. Tropical plants will take over the earth.

Ten thousand years from now - restaurants will have alligator and iguana steak nights.

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