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Old 04-20-2015, 10:42 PM   #1
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Megalodon

Does this great fish still lurk in the oceans today?
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Old 04-20-2015, 10:44 PM   #2
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Yes!!!!! But not really... it should though.. could swallow up sea world's research vessels in one bite
Whale shark is up there in size.. lacks the predatory rage factor though.
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Old 04-20-2015, 10:46 PM   #3
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Check this out:
Rare megamouth shark washes up at Philippines beach | Daily Mail Online

Alien Sharks: The Megamouth | Shark Week | Discovery
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Old 04-20-2015, 10:50 PM   #4
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That's some odd deep water get up there.. here's a little something to compare.

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Old 04-20-2015, 10:57 PM   #5
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Originally Posted by Brookster123 View Post
That's some odd deep water get up there.. here's a little something to compare.

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Holy moly!
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Old 04-21-2015, 01:13 AM   #6
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Direct information from my Biology of Sharks class:

We actually know quite a lot about Megalodon's life history from the fossil record. We know that it was a migratory shark which followed the migrations of the great whales of the time. Much like the modern day lemon shark, it traveled into shallow coastal waters around Florida, the Gulf of Mexico, the Carribean, etc. in order to give birth to its pups. Those pups stayed in the shallows and fed primarily on fish until they were around 7 meters long at which point they would travel out to sea and begin hunting whales.

One of the major hotspots for Megalodon was the area between North and South America- Megalodon was around before the two became connected by Panama. Whales would migrate through this fairly narrow area and the sharks would be waiting for them there.

Based on this information, I can confidently say that it is highly, highly unlikely that Megalodon still exists. Why? Well, a few reasons. First off, the whales that Megalodon hunted got bigger, and therefore much more difficult to hunt. A 60 foot shark is gonna have a hard time with an 80 foot whale. The isthmus of Panama also closed off, dramatically changing the migration routes of the whales. The sharks may not have been able to keep up with the new, changing migration routes of the whales after adapting for so long to the strategy of hunting around Panama. They may have begun to be outcompeted by smaller group hunting toothed whales. And finally, if Megalodon were still around, surely we would have seen one by now, as their migrations took them into shallow coastal seas to give birth so we'd be seeing both adult and juvenile megalodons regularly.

I hear many people suggest that Megalodon simply adapted to live in the deep sea, but there are some major problems with this "theory". Firstly, it would be a dramatic, drastic shift in behavior for the sharks; especially for a shark with presumably no deep-sea adaptations. Yes, coelocanths were thought extinct until discovered in deep water in the last century, but coelocanths have always lived in deep water habitats. Megalodons have always been coastal sharks and there is no evidence to suggest this fact changing. 2nd, the deep sea just would not support a shark of that size and nature. Sure, the deep sea supports some big animals, but megalodon was a lamnid shark who likely had an advanced thermoregulation mechanism (as many modern pelagic sharks do) as well as other advanced features that would require a caloric intake that would likely be too difficult to achieve as a deep sea predator. Just look at another massive deep sea shark, the greenland shark- it eats sleeping seals in the arctic but still doesn't have enough energy to go more than a few kilometers an hour- let alone achieve advanced thermoregulation.

Sorry guys, Megalodon is awesome, but I'm near-positive they're extinct.
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Old 04-21-2015, 01:29 AM   #7
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Sinibotia,

Thank you for the history lesson!!! I thoroughly enjoyed it!!!
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Old 04-21-2015, 11:04 PM   #8
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http://io9.com/5877595/meet-the-2000...-a-single-year

Yes I know they're extinct. Im just trying to entice some good crazy imaginations out there. Im not so certain a 60ft megalodon would have too hard of time with an 80ft solitary whale.
How long did it take to confirm the giant squid exists?
Also, the Bermuda Triangle could be Megalodon hold out.
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Old 04-21-2015, 11:08 PM   #9
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Quote:
Originally Posted by Tbox View Post
Meet the 20,000 new species we discovered in a single year

Yes I know they're extinct. Im just trying to entice some good crazy imaginations out there. Im not so certain a 60ft megalodon would have too hard of time with an 80ft solitary whale.
How long did it take to confirm the giant squid exists?
Also, the Bermuda Triangle could be Megalodon hold out.
I think that an 80 foot whale would be difficult enough that a 60 foot shark would not always make it out alive... and that's a serious problem.

Giant squid is a deep sea animal and always has been. There is no evidence of Megalodon being a deep sea shark, in fact all evidence suggests it could often be found extremely close to shore, especially the juveniles. We would have confirmed a 60 foot shark's existence by now.
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Old 04-21-2015, 11:11 PM   #10
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A little manatee told.me megladon and the lochness monster vacation in the keys together!

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