It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
originally posted by: AnarchoCapitalist
a reply to: Krazysh0t
I still don't understand your point.
Just because it is theorized that sauropods had air sacks doesn't make any difference when it comes to blood pressure, and the required force needed to pump blood 9 meters into the air. The souropods could be entirely made out of air sacks and it wouldn't change the physics required to pump blood.
Your argument doesn't address my argument in any way.
And all of this is to say nothing of other circulation problems that come with being big. When a Supersaurus lowered its neck to feed at ground level, the dinosaur would have risked a terrible rush of blood to the head. Although very, very distantly related – seeing as they are mammals – giraffes hint at one solution for coping with this problem. The long-necked mammals have a web of little arteries called the rete mirable, Ganse and coauthors point out, which helps prevent blood pressure from skyrocketing while the giraffe’s neck is lowered. Sauropods could have evolved a similar structure. No one has yet found evidence of such an arrangement for sauropods, but it’s still a hypothesis worth entertaining since the feature exists in another long-necked vertebrate.
Then there’s the question of how sauropods prevented blood from pooling in their limbs. Once the blood went out to these extremities, how did it overcome gravity to go back to the heart?
...
We may never know how sauropods got around the same problem, but, given their size and facts of their biology, they must have had some mechanism to prevent edema.
originally posted by: TinfoilTP
originally posted by: amazing
I wonder if Satan put it there to confuse us. He does that right?
I wonder if Noah rode one? He did that right?
Awesome Dinosaur! Amazing discovery. Love this stuff!
No but God did show Behemoth to Job in some way.
Job 40:15-24New International Version (NIV)
15 “Look at Behemoth,
which I made along with you
and which feeds on grass like an ox.
16 What strength it has in its loins,
what power in the muscles of its belly!
17 Its tail sways like a cedar;
the sinews of its thighs are close-knit.
18 Its bones are tubes of bronze,
its limbs like rods of iron.
19 It ranks first among the works of God,
yet its Maker can approach it with his sword.
20 The hills bring it their produce,
and all the wild animals play nearby.
21 Under the lotus plants it lies,
hidden among the reeds in the marsh.
22 The lotuses conceal it in their shadow;
the poplars by the stream surround it.
23 A raging river does not alarm it;
it is secure, though the Jordan should surge against its mouth.
24 Can anyone capture it by the eyes,
or trap it and pierce its nose?
originally posted by: amazing
originally posted by: TinfoilTP
originally posted by: amazing
I wonder if Satan put it there to confuse us. He does that right?
I wonder if Noah rode one? He did that right?
Awesome Dinosaur! Amazing discovery. Love this stuff!
No but God did show Behemoth to Job in some way.
Job 40:15-24New International Version (NIV)
15 “Look at Behemoth,
which I made along with you
and which feeds on grass like an ox.
16 What strength it has in its loins,
what power in the muscles of its belly!
17 Its tail sways like a cedar;
the sinews of its thighs are close-knit.
18 Its bones are tubes of bronze,
its limbs like rods of iron.
19 It ranks first among the works of God,
yet its Maker can approach it with his sword.
20 The hills bring it their produce,
and all the wild animals play nearby.
21 Under the lotus plants it lies,
hidden among the reeds in the marsh.
22 The lotuses conceal it in their shadow;
the poplars by the stream surround it.
23 A raging river does not alarm it;
it is secure, though the Jordan should surge against its mouth.
24 Can anyone capture it by the eyes,
or trap it and pierce its nose?
That almost sounds like a metaphor for something else and wouldn't explain the T-Rex.
originally posted by: TinfoilTP
originally posted by: SLAYER69
A Dino that's truly appropriately named.
Now for every prey there was a predator. you know the old saying.
'The Bigger they are, the harder they fall'
So, who/what hunted this bad boy?
They lived in the Pennsylvanian epoch
Pennsylvanian Epoch (318.1 to 299 mya)
- Atmospheric oxygen levels reach over 30%
- Giant arthropods populate the land
That was long before predatory dinosaurs which were in the Triasic Period which was 50 million years after these big guys and there was a mass extinction in between during the Permean Period. Plus Oxygen levels were lower by the Triasic from the 30% down to 12% so highly unlikely they could exist past the extinction event.
Source
originally posted by: AnarchoCapitalist
a reply to: Krazysh0t
The article you link says they don't know how the blood pressure was regulated, which simply ignores the problem, which is what I pointed out in my OP.
They ignore it.
And all of this is to say nothing of other circulation problems that come with being big. When a Supersaurus lowered its neck to feed at ground level, the dinosaur would have risked a terrible rush of blood to the head. Although very, very distantly related – seeing as they are mammals – giraffes hint at one solution for coping with this problem. The long-necked mammals have a web of little arteries called the rete mirable, Ganse and coauthors point out, which helps prevent blood pressure from skyrocketing while the giraffe’s neck is lowered. Sauropods could have evolved a similar structure. No one has yet found evidence of such an arrangement for sauropods, but it’s still a hypothesis worth entertaining since the feature exists in another long-necked vertebrate.
Then there’s the question of how sauropods prevented blood from pooling in their limbs. Once the blood went out to these extremities, how did it overcome gravity to go back to the heart?
...
We may never know how sauropods got around the same problem, but, given their size and facts of their biology, they must have had some mechanism to prevent edema.
They write it off as some minor anomaly that isn't worth addressing at length.
This isn't some minor anomaly that can be hypothesized away by pointing to modern day animals.
Esker goes into detail about the physics involved. The dinosaurs could not have lived in an environment like Earth today. It's simply impossible.
As Esker and I point out, either the air pressure or the gravity must have been radically different from what it is today.
originally posted by: helldiver
originally posted by: TinfoilTP
originally posted by: SLAYER69
A Dino that's truly appropriately named.
Now for every prey there was a predator. you know the old saying.
'The Bigger they are, the harder they fall'
So, who/what hunted this bad boy?
They lived in the Pennsylvanian epoch
Pennsylvanian Epoch (318.1 to 299 mya)
- Atmospheric oxygen levels reach over 30%
- Giant arthropods populate the land
That was long before predatory dinosaurs which were in the Triasic Period which was 50 million years after these big guys and there was a mass extinction in between during the Permean Period. Plus Oxygen levels were lower by the Triasic from the 30% down to 12% so highly unlikely they could exist past the extinction event.
Source
Your info is wildly inaccurate. Dreadnoughtus was alive about 70 million years ago during the Cretaceous as were tyrannosaurids.
originally posted by: gwynned
originally posted by: helldiver
originally posted by: TinfoilTP
originally posted by: SLAYER69
A Dino that's truly appropriately named.
Now for every prey there was a predator. you know the old saying.
'The Bigger they are, the harder they fall'
So, who/what hunted this bad boy?
They lived in the Pennsylvanian epoch
Pennsylvanian Epoch (318.1 to 299 mya)
- Atmospheric oxygen levels reach over 30%
- Giant arthropods populate the land
That was long before predatory dinosaurs which were in the Triasic Period which was 50 million years after these big guys and there was a mass extinction in between during the Permean Period. Plus Oxygen levels were lower by the Triasic from the 30% down to 12% so highly unlikely they could exist past the extinction event.
Source
Your info is wildly inaccurate. Dreadnoughtus was alive about 70 million years ago during the Cretaceous as were tyrannosaurids.
DREAD NOT US is a joke. Allegedly the size of a 737? Seriously, people. And they JUST discovered this thing? IT IS A HOAX - pure and simple.
originally posted by: helldiver
originally posted by: gwynned
originally posted by: helldiver
originally posted by: TinfoilTP
originally posted by: SLAYER69
A Dino that's truly appropriately named.
Now for every prey there was a predator. you know the old saying.
'The Bigger they are, the harder they fall'
So, who/what hunted this bad boy?
They lived in the Pennsylvanian epoch
Pennsylvanian Epoch (318.1 to 299 mya)
- Atmospheric oxygen levels reach over 30%
- Giant arthropods populate the land
That was long before predatory dinosaurs which were in the Triasic Period which was 50 million years after these big guys and there was a mass extinction in between during the Permean Period. Plus Oxygen levels were lower by the Triasic from the 30% down to 12% so highly unlikely they could exist past the extinction event.
Source
Your info is wildly inaccurate. Dreadnoughtus was alive about 70 million years ago during the Cretaceous as were tyrannosaurids.
DREAD NOT US is a joke. Allegedly the size of a 737? Seriously, people. And they JUST discovered this thing? IT IS A HOAX - pure and simple.
If its good enough for New Scientist then it should be good enough for you.
www.newscientist.com...
It's not like they found this yesterday btw. They've been describing these fossils since 2005.
originally posted by: helldiver
originally posted by: TinfoilTP
originally posted by: SLAYER69
A Dino that's truly appropriately named.
Now for every prey there was a predator. you know the old saying.
'The Bigger they are, the harder they fall'
So, who/what hunted this bad boy?
They lived in the Pennsylvanian epoch
Pennsylvanian Epoch (318.1 to 299 mya)
- Atmospheric oxygen levels reach over 30%
- Giant arthropods populate the land
That was long before predatory dinosaurs which were in the Triasic Period which was 50 million years after these big guys and there was a mass extinction in between during the Permean Period. Plus Oxygen levels were lower by the Triasic from the 30% down to 12% so highly unlikely they could exist past the extinction event.
Source
Your info is wildly inaccurate. Dreadnoughtus was alive about 70 million years ago during the Cretaceous as were tyrannosaurids.
originally posted by: TinfoilTP
originally posted by: helldiver
originally posted by: TinfoilTP
originally posted by: SLAYER69
A Dino that's truly appropriately named.
Now for every prey there was a predator. you know the old saying.
'The Bigger they are, the harder they fall'
So, who/what hunted this bad boy?
They lived in the Pennsylvanian epoch
Pennsylvanian Epoch (318.1 to 299 mya)
- Atmospheric oxygen levels reach over 30%
- Giant arthropods populate the land
That was long before predatory dinosaurs which were in the Triasic Period which was 50 million years after these big guys and there was a mass extinction in between during the Permean Period. Plus Oxygen levels were lower by the Triasic from the 30% down to 12% so highly unlikely they could exist past the extinction event.
Source
Your info is wildly inaccurate. Dreadnoughtus was alive about 70 million years ago during the Cretaceous as were tyrannosaurids.
Nope, look at the link in one of the posts it gives the timelines. These guys were long extinct by the time tyrannosaurs lived.
originally posted by: gwynned
originally posted by: helldiver
originally posted by: gwynned
originally posted by: helldiver
originally posted by: TinfoilTP
originally posted by: SLAYER69
A Dino that's truly appropriately named.
Now for every prey there was a predator. you know the old saying.
'The Bigger they are, the harder they fall'
So, who/what hunted this bad boy?
They lived in the Pennsylvanian epoch
Pennsylvanian Epoch (318.1 to 299 mya)
- Atmospheric oxygen levels reach over 30%
- Giant arthropods populate the land
That was long before predatory dinosaurs which were in the Triasic Period which was 50 million years after these big guys and there was a mass extinction in between during the Permean Period. Plus Oxygen levels were lower by the Triasic from the 30% down to 12% so highly unlikely they could exist past the extinction event.
Source
Your info is wildly inaccurate. Dreadnoughtus was alive about 70 million years ago during the Cretaceous as were tyrannosaurids.
DREAD NOT US is a joke. Allegedly the size of a 737? Seriously, people. And they JUST discovered this thing? IT IS A HOAX - pure and simple.
If its good enough for New Scientist then it should be good enough for you.
www.newscientist.com...
It's not like they found this yesterday btw. They've been describing these fossils since 2005.
Sorry. I don't care if the POPE put his imprimatur on this. It's BS. In fact, there are plenty of people who think the entire dinosaur thing is a hoax. For me, this was the nail in the coffin.
originally posted by: TinfoilTP
originally posted by: helldiver
originally posted by: TinfoilTP
originally posted by: SLAYER69
A Dino that's truly appropriately named.
Now for every prey there was a predator. you know the old saying.
'The Bigger they are, the harder they fall'
So, who/what hunted this bad boy?
They lived in the Pennsylvanian epoch
Pennsylvanian Epoch (318.1 to 299 mya)
- Atmospheric oxygen levels reach over 30%
- Giant arthropods populate the land
That was long before predatory dinosaurs which were in the Triasic Period which was 50 million years after these big guys and there was a mass extinction in between during the Permean Period. Plus Oxygen levels were lower by the Triasic from the 30% down to 12% so highly unlikely they could exist past the extinction event.
Source
Your info is wildly inaccurate. Dreadnoughtus was alive about 70 million years ago during the Cretaceous as were tyrannosaurids.
Nope, look at the link in one of the posts it gives the timelines. These guys were long extinct by the time tyrannosaurs lived.