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Prehistoric Sharks

India sanjay Offline
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#31
( This post was last modified: 08-20-2019, 01:27 PM by sanjay )

Spalea... Funny Laughing
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Finland Shadow Offline
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#32

@Megalodon  You can´t post now in two days. You tried to continue writing FACTS while in reality you wrote OPINIONS.

If you want to continue here, you have to start to behave like an adult.

We all have animals, which we like maybe more than others. Still that is no excuse to mix up facts with opinions. If you can´t separate those, then it´s pointless for you to be here. There are other ways to show positive information about some animals, than acting like.... frankly speaking like worshipping it.

I like for instance bears, still I post cases where wolves make time to time some bears look like fools. That is just what it is. Young lions can embarrass themselves in some situations, get even killed, same goes with tigers.... great white sharks are top class predators, still they can be beaten by orcas. Orcas then again aren´t always successful with sperm whales and other big whales... then again some sperm whales die by orcas.... etc. etc.

All animals have their highlights and then again less spectacular moments. We are talking about wildlife, wild animals here, not robots. About some things, like megalodons, there is so much speculation that useless to make too strong statements. Without a doubt it was one of the top predatory sharks. But could it do whatever it wanted... difficult to say.

Anyway, up to you after two days. Start to post with more objectivity if still here. You have made some good postings, but when some animals are mentioned, quality is low.
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India sanjay Offline
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#33

@Megalodon if you don't care about the opinion of us then don't post here... You can leave Forum. WildFact does not allow a kid theory as facts for the assumptions.

There are many other forums.. where you can showoff our meg skill. Even you will get good friends there who will teach you how to exaggerate even more and twist the present data to make it proofs.. you are already good at it and by joining your people you will become more pro. Don't waste your time here.. we don't have space and room for garbage
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United Kingdom Spalea Offline
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#34

Helicorpion: was it truly a prehistoric shark ? Helicorpion lived in the Early Permians oceans, 290 millions years ago, perhaps 10-12 meters long. " The only known fossils of this genus on record were their teeth, which were arranged in a "tooth-whorl" strongly reminiscent of a circular saw  " Wikipedia dixit... So the link for a more complete description:

https://en.wikipedia.org/wiki/Helicoprion

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Venezuela epaiva Offline
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#35
( This post was last modified: 10-07-2019, 10:54 PM by epaiva )

Carcharodon Megalodon
Credit to http://www.fossilguy.com

*This image is copyright of its original author

*This image is copyright of its original author

*This image is copyright of its original author

*This image is copyright of its original author
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Venezuela epaiva Offline
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#36

Incredible reconstructed Carcharodon Megalodon jaw
Credit to Jack Gordon - The Fossil Forum

*This image is copyright of its original author
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Guatemala GuateGojira Offline
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#37

(11-28-2019, 01:19 PM)edczxc Wrote: You're wrong.
Killer whales have never extinct Megalodon.
You're wrong. 
Killer whales are not an extinct source of megalodons at all.
The reason why Megalodon became extinct is because of changes in water temperature and lack of food.

And you can't touch Megalodon, a group of killer whales.
A pack of killer whales is just a food for megalodons.
If Megalodon attacks a pack of killer whales,
a herd of killer whales runs away
This is the reality.

Don't exaggerate a killer whale.

And Livyatan melvillei doesn't touch megalodon easily.
Even though it's been reduced in size, the 15 meter megalodon is
It's a predatory predatory that threatens Livyatan melvillei enough.

Answer to this in this topic, post No. 17: https://wildfact.com/forum/topic-how-meg...ike?page=2

This guy is spamming at least 3 topics, all related to Otodus (Carcharocles) megalodon with the same thing. Alert of Fan-boy like the banned posted "Megalodon"?
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Oman Lycaon Offline
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#38

Done and cleaned.
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United Kingdom Spalea Offline
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#39

A leviathan (sperm whales) surrounded by numerous sharks of all sizes, and among them some megalodons. Of course Megalodon was an apex predator but being no sure how big it really was, we cannot know to what extent it was it, an apex predator (weighing 65 tons) crushing the concurrency, or an apex predator (weighing 20-25 tons) sharing its ascendancy with an other one. How its dimensions can be extrapoled only by analysing some teeth ? The mystery remains...







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United States GrizzlyClaws Offline
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#40

(06-29-2023, 01:23 AM)Spalea Wrote: A leviathan (sperm whales) surrounded by numerous sharks of all sizes, and among them some megalodons. Of course Megalodon was an apex predator but being no sure how big it really was, we cannot know to what extent it was it, an apex predator (weighing 65 tons) crushing the concurrency, or an apex predator (weighing 20-25 tons) sharing its ascendancy with an other one. How its dimensions can be extrapoled only by analysing some teeth ? The mystery remains...









I saw that video a year ago.

That Leviathan was capable to annihilate multiple large male Megs, but eventually it got finished off by a huge female Meg.

But it was still a close call as the female Meg triumphed with its pre-emptive attack.


BTW, a very plausible hypothetical scenario, very likely occurred during the prehistoric era.
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Apex Titan Offline
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#41
( This post was last modified: 06-29-2023, 07:04 PM by Apex Titan )

(06-29-2023, 05:39 AM)GrizzlyClaws Wrote:
(06-29-2023, 01:23 AM)Spalea Wrote: A leviathan (sperm whales) surrounded by numerous sharks of all sizes, and among them some megalodons. Of course Megalodon was an apex predator but being no sure how big it really was, we cannot know to what extent it was it, an apex predator (weighing 65 tons) crushing the concurrency, or an apex predator (weighing 20-25 tons) sharing its ascendancy with an other one. How its dimensions can be extrapoled only by analysing some teeth ? The mystery remains...









I saw that video a year ago.

That Leviathan was capable to annihilate multiple large male Megs, but eventually it got finished off by a huge female Meg.

But it was still a close call as the female Meg triumphed with its pre-emptive attack.


BTW, a very plausible hypothetical scenario, very likely occurred during the prehistoric era.

There's no way that a single Leviathan would be able to defeat multiple large male megalodon's. That video is highly unrealistic and ridiculous. Leviathan was just an ancient sperm whale with much larger teeth and more predatory, but would be no match for an adult megalodon. The megalodon was larger, more powerful and more lethally equipped for killing than any other ocean predator ever.

IMHO, the only way the Leviathan whale would stand a chance, is if a whole pod attacked a single megalodon.

@Spalea I want your honest take on this as well.

I have a question... according to the general consensus of the worlds foremost marine predator experts, researchers and paleontologists, nothing in the ocean could have taken on a megalodon, nothing could have challenged it, so why do you think they say this?

You might find maybe one expert who thinks a Leviathan may stand a chance or being capable of defeating a megalodon, but the vast majority of the worlds marine predator experts adamantly state that the megalodon was the undisputed apex predator and ruler of the prehistoric ocean and could have killed anything it wanted to. Recent scientific research also shows this.

The Leviathan (Livyatan Melvillei) doesn't get mentioned by the experts (even in documentaries) for a good reason. Only on animal forums do posters mention the Leviathan to be a "worthy opponent" for a megalodon. Why?
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France hibernours Offline
Banned
#42

(06-29-2023, 07:01 PM)Apex Titan Wrote:
(06-29-2023, 05:39 AM)GrizzlyClaws Wrote:
(06-29-2023, 01:23 AM)Spalea Wrote: A leviathan (sperm whales) surrounded by numerous sharks of all sizes, and among them some megalodons. Of course Megalodon was an apex predator but being no sure how big it really was, we cannot know to what extent it was it, an apex predator (weighing 65 tons) crushing the concurrency, or an apex predator (weighing 20-25 tons) sharing its ascendancy with an other one. How its dimensions can be extrapoled only by analysing some teeth ? The mystery remains...









I saw that video a year ago.

That Leviathan was capable to annihilate multiple large male Megs, but eventually it got finished off by a huge female Meg.

But it was still a close call as the female Meg triumphed with its pre-emptive attack.


BTW, a very plausible hypothetical scenario, very likely occurred during the prehistoric era.

There's no way that a single Leviathan would be able to defeat multiple large male megalodon's. That video is highly unrealistic and ridiculous. Leviathan was just an ancient sperm whale with much larger teeth and more predatory, but would be no match for an adult megalodon. The megalodon was larger, more powerful and more lethally equipped for killing than any other ocean predator ever.

IMHO, the only way the Leviathan whale would stand a chance, is if a whole pod attacked a single megalodon.

@Spalea I want your honest take on this as well.

I have a question... according to the general consensus of the worlds foremost marine predator experts, researchers and paleontologists, nothing in the ocean could have taken on a megalodon, nothing could have challenged it, so why do you think they say this?

You might find maybe one expert who thinks a Leviathan may stand a chance or being capable of defeating a megalodon, but the vast majority of the worlds marine predator experts adamantly state that the megalodon was the undisputed apex predator and ruler of the prehistoric ocean and could have killed anything it wanted to. Recent scientific research also shows this.

The Leviathan (Livyatan Melvillei) doesn't get mentioned by the experts (even in documentaries) for a good reason. Only on animal forums do posters mention the Leviathan to be a "worthy opponent" for a megalodon. Why?

@Alert Fanboy, @Alert Fanboy. Another fanboy who confuses Megalodon with Godzilla...  Disappointed .
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Guatemala GuateGojira Offline
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#43

(06-29-2023, 07:01 PM)Apex Titan Wrote: There's no way that a single Leviathan would be able to defeat multiple large male megalodon's. That video is highly unrealistic and ridiculous. Leviathan was just an ancient sperm whale with much larger teeth and more predatory, but would be no match for an adult megalodon. The megalodon was larger, more powerful and more lethally equipped for killing than any other ocean predator ever.

IMHO, the only way the Leviathan whale would stand a chance, is if a whole pod attacked a single megalodon.

@Spalea I want your honest take on this as well.

I have a question... according to the general consensus of the worlds foremost marine predator experts, researchers and paleontologists, nothing in the ocean could have taken on a megalodon, nothing could have challenged it, so why do you think they say this?

You might find maybe one expert who thinks a Leviathan may stand a chance or being capable of defeating a megalodon, but the vast majority of the worlds marine predator experts adamantly state that the megalodon was the undisputed apex predator and ruler of the prehistoric ocean and could have killed anything it wanted to. Recent scientific research also shows this.

The Leviathan (Livyatan Melvillei) doesn't get mentioned by the experts (even in documentaries) for a good reason. Only on animal forums do posters mention the Leviathan to be a "worthy opponent" for a megalodon. Why?

Prehistoric animals are a mystery, best thing we can do is to try to study modern animals and see how they could correlate with the past ones. It sounds simple but there are several problems, as many of the past animals are just far related with the modern ones and we know that modern animals had particular behavious that we will not knew if we could not observe them directly.

The video is just a fan art, nothing more and nothing less, no more valuable than the Rex vs Spino fight in JP3. We can't avoid people express they ideas, I learned that in the hard way.

But talking about the real animals, we don't know if these species were solitary or if lived in groups, and we can only "guess" based in modern species. Most of sharks are solitary and they just come in groups when there is a good food source like happen with the white and tiger sharks, so we can guess that most of the time Carcharocles (otodus) megalodon was solitary but we can also guess that they could tolerate each other under special  circunstances. About Livyatan melvillei we have the same problem, we can say that modern whales are groupal, but that is an oversimplification and even social animals like orcas have individuals (large males most of the time) that travel alone, and to add more salt to the soup, the modern relatives of this species, which are the two genus of sperm whales, have completelly different behaviors, so we can guess that as they are cetaceans they could travel in groups of "pods", but if they are like modern Physeter, males will be loners. So, as you can see, this is just a game of probabilities, based in more or less closer relatives, and the evidence suggest a behaviour contrary to what we see in the video. In fact, I will suggest that the video should be a big Megalodon killing young and female Livyatans until a big male arrive and kill it, that will have more sense honestly. 

Now about the experts and why Livyatan is not mentioned. Honestly, tiger supporters had the same problem with the romans, if tiger won must of the fights why the romans supported the lion as the most powerfull cat? Well, the answer was simple, tigers were know in Europe until the time of Alexander the great and was only one skin, and alive tigers arrived to Rome like a gift to Augustus until year 11 B.C.E. for the dedication of the Theater of Marcellus. In fact, no more than 200 tigers were presented to the Romans in all they history, a ridicuous amount if we take in count that romans killed more than 300 or even 500 lions in just one show, and they had many of this shows! Lions were highly familiar to the Romans, and the new arrival was no match for the imagination and "love" for the old signs, so tiger were never familiar to the Romas as lions do. Now, it you ask to any marine predator experts about what is a Livyatan, I can tell that not all of them know about it, in fact prehistoric marine mammals are highly unknown to many experts and also most of the people outside, remember that we have less than 10 papers that mention it (only 4 specific about it) while on the other hand Megalodon is incredible famous, almoust like T. rex. To put other analogy, ask people about Mapusaurus and they will have no idea what you are talking about. We have no documental, no movie, nothing about Livyatan, or any other prehistoric cetacean, apart from Basilosaurus and maybe Brygmophyseter (and this last one was baddly represented), so there is no surprise why there is a "consensus" that Megalodon is the "champion". But this is going to change in the future years, now that the knowledge is been shared at higher speed and more people is knowing about the prehistoric cetaceans. In fact, there is many people that is surprise to know how small where the first whales.

So, playing the card that "most of experts" or that documentaries/movies "adamantly" show that Megalodon is the undisputed king is not correct, because you are just taking advantage of the circumstances and the lack of knowledge, basically using a falacy to back up a statement without base.

If you going to back up an statement you must use facts, and there are no facts that Megalodon "won" agains Livyatan, or the other way around. The only thing that we know is that these two animals were the top predators of they area, that they compete for the same resources and that at the end both whent extinct. Also, remember that marine predators must of the time hunt smaller animales than themselves (orca is the exception, when hunt in groups), and "if" Livyatan lived in groups, with a similar size than the average sized Meg, probably the big shark will avoid those pods of cetaceas and focus in the more easy prey like the "small" Cetotheriums. But all this is just speculation at the end, although based in the behaviour of modern animals.

I am not going to touch the point about sizes as is a real mess, because the "Meg" change every new study, and for "Liv" we have only one "official" estimation. However, at least, one more-or-less complete skull is better that a bunch of teeth and a lot of speculation, I think.
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United Kingdom Spalea Offline
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#44

@Apex Titan :

Well, @GuateGojira has magistrally answered in my place. What could I add ? I didn't want to make you angry or to cast doubt systematically what you tell. I only ask a few questions, always the same... You say that the biggest megalodon specialists think as you do. Perhaps yes, but I don't care of their assertions and stay with my doubts.
Of course this video seems to be ridiculous in your opinion. It isn't a scientific video of course, it has no one scientific value, but I find it good made. With little means, we just feel sperm whale's and shark's skins. Very realistic, I have even a deeper appreciation as concerns these videos about dinosaurs and terrestrial animals. But that 's an other subject.
About megalodons I always only stated on this: they were cartilaginous fishs. So in other words, no one possible fossilization of the bones, except the teeth. And about teeth what can we do ? To compare them with the actual tiger and white shark's teeth. And to make or estimate a volume ratio. And from that, estimating the megalodon's weight. Simple isn't it ? No because we don't stop reading some extrapolations, some always growing extrapolations could I say. I just say it changes everything according to whether the meg weighed 20 or 65 tons (your last estimation). In the first case, the megalodon had to sustain a competition with other huge predators, in the second case it completely destroyd the concurrency. You're seemingly adopting this last hypothesis, adult megalodon was invincible. And not an indolent shark as you told in a previous thread. OK ! How, in this case, this specy could have been roaming so much time, 20 millions years, inside oceans ? I only see one possible explanation: megalodons were extraordinary scarce. An invincible predator systematically killing big preys and other big predators cannot have a geological duration of life (look upon us ! We are quickly going towards our extinction with our actual bullshit) except because of its extrem scarcity.
So, what was the limitating factor of its population ? Extremely low rate of reproduction ? Perhaps... A worm is in the fruit.
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Apex Titan Offline
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#45

@Spalea  @GuateGojira 

I'll respond to you guys later when I have time.

@hibernours 

You're a troll who's deliberately looking for trouble. You're simply incapable of discussing this topic in a civil manner.
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