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Post by tom on Mar 4, 2020 15:46:01 GMT -5
We'll I'll give you a few hints. He's changed his screen name many times here and his current favorite color is GREEN !
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Post by tom on Mar 4, 2020 15:49:03 GMT -5
One of the shortcomings of this board is that I can prevent screen name changes if using a computer but if you do so using a mobile device I can't prevent it. I told him he could change it but I wish he would just stick to one name for good so we don't think he is a new member.
So what GreenArtos is doing (please correct me if I have it wrong GreenArtos) is he deletes his old account and creates a new one each time he changes his username. Am I correct GreenArtos?
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Post by brobear on Mar 4, 2020 16:08:02 GMT -5
GreenArtos, is there more than one of you on our members list?
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Post by tom on Mar 4, 2020 16:26:13 GMT -5
No there wouldn't be if he deletes his account and creates a new one. That's why you would see deleted member on his older posts before he changed.
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Post by OldGreenGrolar on Mar 4, 2020 17:44:45 GMT -5
No this is my only account. I deleted my old account. I would never create multiple nicks guys.
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Post by OldGreenGrolar on Mar 4, 2020 17:48:03 GMT -5
One of the shortcomings of this board is that I can prevent screen changes if using a computer but if you do so using a mobile device I can't prevent it. I told him he could change it but I wish he would just stick to one name for good so we don't think he is a new member. So what GreenArtos is doing (please correct me if I have it wrong GreenArtos) is he deletes his old account and creates a new one each time he changes his username. Am I correct GreenArtos? London blue bear was my old account which I deleted last year as I created GreenEarthBirds forum with a different email. I discovered I could only log on to proboards with one email at the time. As a result I decided to delete my old account. Now I can access all pro board forums at once. That’s why.
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Post by tom on Mar 4, 2020 18:12:46 GMT -5
No problem. Actually the forum DOES allow you to change your display name in your profile while keeping your account username intact, but for sanity reasons I frown on it so we simply know who you are.
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Post by brobear on Mar 9, 2020 3:34:20 GMT -5
Quote: I made this. - Sorry kingursusarctos - Nothing there.
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Post by King Kodiak on Apr 15, 2020 18:24:42 GMT -5
PHORUSRHACIDAE (TERROR BIRDS FAMILY). C AND D ARE BRONTORNIS BURMEISTERI
Context 1 ... the case of certain phorusrhacids, such as Brontornis burmeinsteri, a comparison of the tarsometa- tarsi of two specimens, FM-P13259 and MLP-91 (lec- totype) (Figs. 2C and 2D), both coming from the same geographical region and geological formation, shows them as not to present any anatomical differences, apart from size, wherein the first is around 33% smaller than the second. The idea is that they are examples of in- tra-specific variation, possibly sexual dimorphism. There is the possibility that they ... View Context 2 ... Revised -Phorusrhacidae of a gigantic build, reaching over two meters high, heavy and robust. The mandibular symphysis is proportionally shorter, wider and higher than in the other Phorusrhacidae (Fig. 7). The tarsometatarsus is proportionally short, widened and flattened dorso-plantarwise ( Fig. 2 and Fig. 8), its length reaching only 50% to 60% of that of the tibiotarsus (Fig. 3). In Brontornis, the dorsomedial extremity of the articular surface of the mesotrochlea of the tarsometa- tarsus is proximally projected, when viewed in profile (Fig. 8C), whilst in Paraphysornis this portion is more medially expanded. Even though the trochlae of ... www.google.com/amp/s/www.researchgate.net/figure/Dorsal-view-of-the-tarsometatarsi-of-the-Brontornithinae-A-D-and-Phorusrhacinae-E-F_fig2_26342981/amp
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Post by King Kodiak on Apr 15, 2020 18:27:44 GMT -5
Theundertaker45....this is a very weird match up, so i am very interested in your opinion on this if you want.
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Post by theundertaker45 on Apr 15, 2020 18:37:54 GMT -5
Brontornis was said to reach ~850-900lbs (~400kg) at max.; that's as much as the average Alaskan Peninsula grizzly. The bear would certainly hold a size advantage over the prehistoric bird at average weights; pairing it with the fact that Brontornis had underdeveloped arms, I don't think it would hypothetically have the tools necessary to prevent a large/strong brown bear from targetting its neck and going in for the kill by making use of his dexterous/robust forelimbs. I also don't really think the ancient bird's beak could do any lethal damage to a coastal brown bear, maybe it could add up internal damage by repeatedly dishing out strikes at the bear but I doubt that would be possible without getting in between those giant clutches of the bruin.
I would render it a mismatch in favour of the larger bear at average weights to be honest, a solid 9/10 in favour of the bear at parity and at max. weights the poor Brontornis gets absolutely dismantled by the much bigger brown bear imo. I didn't do any extensive research on Brontornis, maybe I will come back later and provide a more detailed description.
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Post by King Kodiak on Apr 15, 2020 18:50:20 GMT -5
Thanks for your opinion mate. I do think that Brontornis is a little underrated. How about this study though, wouldn't this give the Bird a few more chances?
Terror Birds: Predators With a Kung Fu Kick?
John Pickrell for National Geographic News August 1, 2005
Phorusrhacids would give even Alfred Hitchcock the shivers: Also known as terror birds, some were nearly 10 feet (3 meters) tall, weighed over half a ton (500 kilograms), and could swallow a dog in a single gulp.
A new study suggests the extinct predators may have been as fleet-footed as modern cheetahs and that some species may have kicked the bones of their prey kung-fu-style to obtain marrow.
The study is one of the first to shed light on the hunting behavior of these huge, flightless predators, which dominated South America from about 65 million to 2.5 million years ago.
Dog Swallower
"Imagine an ostrich with larger, more powerful legs and neck, armed with massive claws," said Herculano Alvarenga, a terror-bird expert at the Museu de História Natural in Sao Paolo, Brazil.
"An ostrich, the largest living bird, can swallow an apple. But a phorusrhacid could swallow a medium-sized dog in one gulp," Alvarenga said.
s8int.com/phile/mega11.html
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Post by theundertaker45 on Apr 15, 2020 18:54:08 GMT -5
Thank you for that insight; the Brontornis could indeed be a tough foe but the bear has the more well rounded package imo. The bird is dependant on his beak and kicks which the bear could probably negate in close-quarter combat, I think the bear comes out better on the long term whereas the bird doesn't have the weapons to kill an enormously durable/robust animal like a brown bear relatively quickly.
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Post by OldGreenGrolar on Apr 15, 2020 19:01:55 GMT -5
The Alaskan brown bear would win in a face to face fight more often than not. However, the brontornis has been said to be able to kill prey animals at 2200 pounds. It’s beak and feet are powerful weapons that could kill something bear size by ambush.
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Post by King Kodiak on Apr 15, 2020 19:07:21 GMT -5
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Post by brobear on Apr 16, 2020 1:23:24 GMT -5
Or simply look at page #1.
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Post by OldGreenGrolar on Jun 11, 2020 23:22:52 GMT -5
I think the brontornis will bear most extant bears in a face to face fight more often than not all the way up to a male brown bear of middle weight (by bear standards).
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Post by brobear on Jun 12, 2020 6:32:41 GMT -5
I think the brontornis will bear most extant bears in a face to face fight more often than not all the way up to a male brown bear of middle weight (by bear standards). wait ... what?
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Post by OldGreenGrolar on Jun 12, 2020 6:39:18 GMT -5
What I meant is the largest bear a 880 piound brontornis can kill (more often than not in a face To face) would be an average male grizzly bear and a large male Queen Charlotte black bear
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Post by brobear on Jun 12, 2020 8:10:22 GMT -5
What I meant is the largest bear a 880 piound brontornis can kill (more often than not in a face To face) would be an average male grizzly bear and a large male Queen Charlotte black bear Oh, OK. A mature Alaskan Peninsula Grizzly would win this ( IMO ) better than 50% of such confrontations.
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