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Did supernovae kill off large ocean animals at dawn of Pleistocene?
Posted on 12/11/18 at 4:40 pm
Posted on 12/11/18 at 4:40 pm
About 2.6 million years ago, an oddly bright light arrived in the prehistoric sky and lingered there for weeks or months. It was a supernova some 150 light years away from Earth. Within a few hundred years, long after the strange light in the sky had dwindled, a tsunami of cosmic energy from that same shattering star explosion could have reached our planet and pummeled the atmosphere, touching off climate change and triggering mass extinctions of large ocean animals, including a shark species that was the size of a school bus.
Much more from Science Daily
Oh wait, I see a potential problem.....
Date:
December 11, 2018
Source:
University of Kansas
Much more from Science Daily
Oh wait, I see a potential problem.....
Date:
December 11, 2018
Source:
University of Kansas
5
Posted on 12/11/18 at 5:30 pm to Trumansfangs
quote:
touching off climate change and triggering mass extinctions of large ocean animals, including a shark species that was the size of a school bus.
Megaladon had it comin. If youre king of the ocean you should be able to figure out how to stop a supernova from killing you
This does bring to mind though, how many of the stars that you see in the night sky are already gone?
Posted on 12/11/18 at 6:17 pm to thatguy45
If they'd had a supernovae blocker, on an evolutionary scale we wouldn't here. Bless you Megaladon for your noble sacrifice !
Posted on 12/11/18 at 6:18 pm to Trumansfangs
Posted on 12/12/18 at 5:41 am to Trumansfangs
It wasn't at dawn; it was early afternoon
Posted on 12/12/18 at 5:14 pm to Trumansfangs
It was probably aliens, but I guess a supernova is technically possible too
Posted on 12/12/18 at 8:50 pm to Trumansfangs
quote:
including a shark species that was the size of a school bus.
Another, more logical, theory about the disappearance of megalodon is that it was too efficient at finding and killing its prey. It ate its biggest prey into extinction and then couldn't sustain its species on smaller ocean animals.
Megalodon was a giant shark.
Posted on 12/13/18 at 7:30 pm to Kentucker
Kentucker, my intellectual friend.
Always the voice of logic and reason !
Always the voice of logic and reason !
Posted on 12/13/18 at 9:07 pm to Trumansfangs
But was it a Champagne Supernova?
Posted on 12/15/18 at 4:45 pm to Carolina_Girl
Posted on 12/15/18 at 5:11 pm to Kentucker
I agree with this assessment,they ate all the big stuff and then ate one another.Most logical conclusion.
Posted on 12/15/18 at 5:23 pm to Clark14
They eat each other like the Aggies?
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