Kronosaurus and Plesiosaur

I have finished another paleoart painting. This one depicts the giant marine reptile Kronosaurus, catching a Plesiosaur.

At the moment, I am continuing with my writing, and quite looking forward to presenting artwork at the Symposium for the Western Interior Paleontological Society, in March. They invited me to come set up a table in March, so I will be working on some more paleoart, as well as a few landscapes.

[I have started making prints for much of my artwork as well, so please let me know if you’d like to buy one. They make great gifts.]

Another Plausible Monster? Direct Evidence for an Unknown Marine Predator

A few months ago, I wrote a post arguing for the likelihood that there is a big, unidentified animal living in the Congo Basin. (Future posts on the same topic are on the way) And while I tend to not hold my breath for the discovery of creatures like Sasquatch or Nessie, in this case the skeptics’ explanations are neither convincing nor parsimonious. The available evidence is best accounted for by a real animal rather than folklore.

This past week, not only has someone brought my attention to another massive, unidentified creature that’s likely to exist, but he has presented evidence that is, in a scientific sense, more compelling.

Max Hawthorne is the author of a horror novel called “Kronos Rising,” which I am reading and thoroughly enjoying. It has drawn many favorable comparisons to “Jaws,” involving a prehistoric reptile that terrorizes a seaside community.

But in one of those beautiful moments where life imitates art, Max’s extensive knowledge of marine creatures sheds light on an enigma that has stumped marine biologists for over a decade.

In 2003, something ate a 9-foot Great White shark off the coast of Australia. The shark had been tagged with a tracker that could measure temperature and depth. But what could it have been?

Come on, I know you're thinking it.

Come on, I know you’re thinking it. Copyright Universal Pictures.

At first, most of the scientific community was supremely confident that there was nothing “sensational” to the event, and that the predator was simply a bigger Great White. The only problem was, that made no sense whatsoever given the available evidence.

I’ll let Max take over with a hypothesis he posted on Facebook (reproduced here with his permission), and then contribute some brief thoughts afterward.

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SUPER PREDATOR – IT’S NOT WHAT THEY SAY IT IS by Max Hawthorne

I watched the documentary “Super Predator” recently. It’s the follow-up to last year’s “Hunt for the Super Predator.” I enjoyed both shows, but after having studied all the data, I find myself compelled to weigh in, because something’s not right.

Last year’s show (and I have no doubt they’ve set things up for a third episode for next year) ended with the premise that the creature that devoured a 3-meter great white shark (named “Shark Alpha” in the Bremer canyon off AU was simply a larger (i.e. 5-meter) great white. I thought this was rubbish. There was no definitive proof of the claim, and it was, IMHO, a fluff piece to quell the media storm and put people’s minds at ease.

In this year’s show, the filmmakers changed their story. Now they’ve presented the theory that a MUCH larger shark, i.e. a Carcharodon megalodon – one that inhabits the abyssal depths – was responsible for the attack on Shark Alpha. They backed this up with a photo of an 80-foot pygmy blue whale sporting a bite scar on its peduncle measuring a whopping 5 feet across. They also stated that the shark that unsuccessfully attacked the pygmy blue would have measured nearly 40 feet in length.

The facts dictate otherwise.

1- Per http://www.cwr.org.au/research/bluewhales.html, the pygmy blue measured 20-21 meters, i.e. a maximum of 69 feet.

2- Also, per the same site’s data, the bite on the whale’s tail measured a maximum of 1.2 meters across. That’s a smidgen less than 4 feet, not 5, indicating a shark around 32 feet long. A sub-adult Megalodon? Possibly. Or maybe just a really huge great white.

3- There is no indication that this pygmy blue whale was attacked in the Bremer canyon, so any insinuation that the shark that bit the whale is the same animal that devoured Shark Alpha is a stretch.

4- Per her satellite tag/tracker, Alpha’s body temperature, when attacked, was confirmed at 46 degrees Fahrenheit. Her body temperature, again per the tag, went from 46 to 78 degrees almost instantly after she was devoured.

5- White sharks have a body temperature that normally ranges from 10-14 degrees Fahrenheit above the surrounding water (the inside of the belly being the highest temp differential). Under extreme circumstances, the maximum differential has been listed at a difference of 25 degrees.

6- Based on body temperature alone, there is no way shark alpha was eaten by another great white. The temperature difference is too extreme. Moreover, if Megalodon is still alive, and has a body temperature anything like its relative, the great white, (a reasonable assumption), it would also fall within this range.

7- Megalodon was a shallow water predator. It makes no sense that it would loiter in the extreme deep where little food exists. Especially not when a banquet of whales waits at the surface.

8- The “Hunt for the Super Predator” special showed that the creature that ate Alpha remained at depths ranging from the surface to 300 feet immediately after feeding, and for the next 8 days, until the tracker/tag was excreted. This was ignored by the new show, assumedly as it would derail their “Abyssal Megalodon” theory. In fact, the “super predator’s” movements in the water column are, in actuality, similar to those of an Orca. It indicates an air breathing predator that does NOT live in the darkness of the abyss.

9- This fact is backed up by Alpha’s behavior, immediately prior to her being consumed. Once attacked, she dove to nearly 2,000 feet at high speed before she was caught and killed. This indicates an attacker that was both fast and capable of deep dives, as well as being able to accurately track fleeing prey in complete darkness (echolocation, anyone?).

10- Retreating/emergency diving to extreme depths when threatened or attacked is a documented tactic white sharks employ when one of their number has been killed by Orcas. This raises the possibility that Shark Alpha may have instinctively tried to employ this same tactic in an attempt to flee what she recognized as a large, air-breathing carnivore.

11- Per the tracker/tag, the digestive process of the “super predator” took 8 days. A great white’s digestive tract takes 24-48 hours, from what I’ve read. Something else digested Alpha – something that dissolves its meal slowly – and based on my experience keeping large crocodilians and such, that would seem to indicate a reptile.

12- Lastly, adult leatherback sea turtles have been known to have core body temperatures 32 degrees Fahrenheit above the surrounding sea water. If the water temperature around shark alpha was 46 degrees and you add 32 to it, you get the EXACT 78 degree body temperature of the Super Predator. Of course, leatherbacks eat jellyfish, not 3-meter white sharks. But the interesting thing about them is that they ARE marine reptiles. This implies that the creature that ate Alpha may ALSO have been a marine reptile of some kind.

SUMMARY: THE EVIDENCE SUPPORTS MY HYPOTHESIS THAT SHARK ALPHA WAS EATEN BY A LARGE, AIR BREATHING ANIMAL: ONE THAT COULD NAVIGATE IN TOTAL DARKNESS, SURVIVE THE PRESSURES OF THE ABYSS, CATCH A FLEEING GREAT WHITE SWIMMING AT 30+ MPH & SWALLOW IT WHOLE, HAD A BODY TEMPERATURE 32 DEGREES HIGHER THAN THE SURROUNDING WATER, HABITUALLY STAYED NEAR THE SURFACE FOR 8+ DAYS AFTER EATING ITS MEAL, AND TOOK 8 DAYS TO DIGEST.

CONCLUSION: SHARK ALPHA WAS CONSUMED BY A HUGE MARINE REPTILE: DISCLUDING UNKNOWN SPECIES AND FOCUSING ON THE FOSSIL RECORD, POSSIBLE CANDIDATES INCLUDE EITHER A GIANT MOSASAUR OR A PLIOSAUR. GIVEN THE DEPTHS THE PREDATOR DESCENDED TO IN PURSUIT OF THE SHARK, AND THAT MOSASAURS WERE SHALLOW DIVING, COLD-BLOODED REPTILES LIKE THEIR MODERN RELATIVES, MONITOR LIZARDS, I’M BETTING ON THE LATTER.

Looks like KRONOS RISING may not be pure fiction after all 😉

Max Hawthorne, author
www.kronosrising.com

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Well done, sir.

Keep in mind, whatever ate this Great White was too warm for another shark, and whales don’t get that cold. Orcas and Sperm Whales have a body temperature that corresponds with ours, and the digestive process of both whales and sharks takes far less than eight days.

But given the temperature and the amount of time the tracker spent in the predator’s body, an enormous marine reptile appears to be the most satisfactory candidate. Finding one of these creatures would settle the question of whether it is a living fossil like in Hawthorne’s book, or a new kind of animal altogether.

Max has also pointed out in my correspondence with him that predators tend to give a wide berth to bigger predators. This could help explain why we haven’t seen more of these animals, if they think large, noisy boats are simply bigger creatures they’d rather avoid. And if a reptile were to come up for air, it could easily be mistaken for a surfacing whale.

Even today, the ocean is surprising us far too profoundly for us to scoff at the notion of an unknown giant predator. Anecdotes of reptilian sea monsters go back thousands of years, but today’s skeptical community waves those off, because in their view, anecdotal evidence “doesn’t count.” I can’t tell you how refreshing and satisfying it is, to find that even the evidence they allow for is marshaling against the old orthodoxy. Our world is still full of surprises.

Here there be monsters.