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Life in the Dark: How Organisms Survived Asteroid Impacts
LiveScience ^
| Thursday, September 10, 2009
| Jeremy Hsu, Astrobiology Magazine
Posted on 09/14/2009 1:00:22 PM PDT by SunkenCiv
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One of the phototrophs used in the experiment was Chlorella vulgaris. Credit: Charles University in Prague |
The dinoflagellate Prorocentrum micans was used in the experiment because it has mixotrophic behavior. Credit: C. Tomas/UNCW |
1
posted on
09/14/2009 1:00:22 PM PDT
by
SunkenCiv
To: 75thOVI; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; BBell; ...
2
posted on
09/14/2009 1:00:57 PM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
To: SunkenCiv
Single-celled bomb shelters?
3
posted on
09/14/2009 1:01:21 PM PDT
by
WayneS
(Respect the 2nd Amendment; Repeal the 16th)
To: SunkenCiv
4
posted on
09/14/2009 1:05:26 PM PDT
by
JoeProBono
(A closed mouth gathers no feet)
To: SunkenCiv
I really have my doubts that the asteroid impact was anything more than the final straw for the dinosaurs. Too many of the smaller more delicate critters did survive.
5
posted on
09/14/2009 1:05:31 PM PDT
by
cripplecreek
(Seniors, the new shovel ready project under socialized medicine.)
To: SunkenCiv
What I want to know is how many of those astroids gave us the life forms that we find in recent samples of “outer space?”
How do we know that WE are not the “aliens?”
6
posted on
09/14/2009 1:10:39 PM PDT
by
Monkey Face
(I wear a yellow ribbon for ForgotenKnight, my army hero grandson.)
To: cripplecreek
:’) It was the final straw — and it was also the first through final minus one straw. The surviving species were exactly the kinds which would (and did) survive the K-T impact event. The dinos were *not* in decline as a taxa prior to the event. There’s a massive resistance to the impact mass extinction model, and will continue to be, from the Darwin diehards; and there’s a massive resistance to it from the YECs.
7
posted on
09/14/2009 1:18:05 PM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
To: Monkey Face
Klaatu barada nikto. I mean, shhh.
8
posted on
09/14/2009 1:18:42 PM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
To: SunkenCiv
9
posted on
09/14/2009 1:24:37 PM PDT
by
SpinnerWebb
(mankind are more disposed to suffer, while evils are sufferable, than to right themselves)
To: SunkenCiv
10
posted on
09/14/2009 1:24:54 PM PDT
by
Monkey Face
(I wear a yellow ribbon for ForgotenKnight, my army hero grandson.)
To: Monkey Face
“How do we know that WE are not the aliens?”
Because there are animals existant today -— with whom we share great genetic similarlity -— that are clearly present in the fossil record.
If we are “aliens” we came at a single-cell level.
Squatters rights after the first billion years.
11
posted on
09/14/2009 1:26:31 PM PDT
by
TheThirdRuffian
(Nothing to see here. Move along.)
To: TheThirdRuffian
We KNOW that? Or do we just “assume” that?
Did we come here in one piece? Did we evolve? Were we created?
(But don’t get me started!!)
12
posted on
09/14/2009 1:40:49 PM PDT
by
Monkey Face
(I wear a yellow ribbon for ForgotenKnight, my army hero grandson.)
To: Monkey Face
I have no interest in the evolve/created debate.
But there are creatures that are extremely old (roaches, snails, whatever) from the earliest of fossil records that exists today.
Large portions of the genome of these “clearly original” creatures is similar to current day human DNA.
Heck, there is “junk” DNA in corn and other plants that tracks human DNA just fine.
So, regardless of the “evolve” or “create” camp, we’re as native as the rest of the stuff on this planet.
13
posted on
09/14/2009 1:54:52 PM PDT
by
TheThirdRuffian
(Nothing to see here. Move along.)
To: TheThirdRuffian
I don’t do “evolve or create” either...just trying to get a fix on views.
(The “argument” is like the chicken and the egg...never ending.)
14
posted on
09/14/2009 1:57:12 PM PDT
by
Monkey Face
(I wear a yellow ribbon for ForgotenKnight, my army hero grandson.)
To: JoeProBono
15
posted on
09/14/2009 2:03:20 PM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
To: SunkenCiv
16
posted on
09/14/2009 2:07:38 PM PDT
by
JoeProBono
(A closed mouth gathers no feet)
To: SunkenCiv
Gee whiz, for a moment there, I thought that said “How Orgasms Survived Asteroid Impacts.”
17
posted on
09/14/2009 3:23:58 PM PDT
by
fieldmarshaldj
(~"This is what happens when you find a stranger in the Alps !"~~)
To: TheThirdRuffian
Large portions of the genome of these clearly original creatures is similar to current day human DNA.
In the book “The Making of the Fittest”, an astounding claim is made: all living things, from the scum living in boiling water of Yellowstone, to plants, to animals, to humans ... share about 500 “immortal” genes in their DNA (primarily used for building cell walls, transcribing DNA to RNA, etc).
If true, the implications are mind boggling.
To: fieldmarshaldj
Okay, but you really need to get out more... ;’)
19
posted on
09/14/2009 6:36:38 PM PDT
by
SunkenCiv
(https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
To: SunkenCiv
I know...
20
posted on
09/14/2009 6:40:14 PM PDT
by
fieldmarshaldj
(~"This is what happens when you find a stranger in the Alps !"~~)
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