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Animal Strength Feats
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Here I show you a more "scientific" article about body strength in Grizzly Bears. It was published as an entry in the official news site, of Montana State University, USA. Or so I believe.
At that site entrance, Doug Cairns and Jay Smith, tried to determine the body strength of a Grizzly Bear, with accelerometers, "a dynamic analysis laptop for testing", and various heavy objects, finding that according to their conclusions, "A calm Grizzly Bear is 2.5 to 5 times stronger than the average man". (Cairns and Smith were the men for comparison, as they were the ones who gave their strength results, using themselves as test and control subjects). Quoted article: -Ellig, T. 2006. MSU researcher tests grizzly bear strength for National Geographic. Montana State University News Service, Montana State University, Bozeman, Montana. And what is so special about this? Simple, that the "simple" strength test was sponsored by the Natgeo, and part of this test appeared in one of the National Geographic Explorer short films (Natgeo's short film is called "Bear Power"). By the way @Shadow . Some time ago in the thread of this forum called "Bear Force", you passed a link to a small answer in a Finnish science magazine, and Heidi Kinnunen, a Finnish wildlife expert, said that to hold a bear with a snare cable, it would need to resist about 16.8 Kilonewtons of pulling force (This is the blue underlined part of the text). As it turns out, I found the origin for such a statement. It's from a 2009 scientific article, where they estimate the pulling force that a brown bear or American black bear should be able to exert in theory, when trying to free itself from a snare cable. I'm sending you the cited article with the access link. According to this article, a brown bear or American black bear, weighing 250 kg, should exert 16.8 Kilonewtons of pulling force. -Flaa, J. P., Michel, S. B., & Borstad, C. (2009). Building a reliable snare cable for capturing grizzly and American black bears. Ursus, 20(1), 50-55.  (11-24-2020, 10:36 PM)alexandro Wrote: Here I show you a more "scientific" article about body strength in Grizzly Bears. It was published as an entry in the official news site, of Montana State University, USA. Or so I believe. Yes I have seen these articles, but it´s one thing when a big animal puts all it´s weight and strength to one maximally strong jerk and another to keep that maximal force up more than a split second. Strongest men can deadlift 500 kg once by giving all they have for a short moment. They can´t do it again too soon. So it is one thing how much force some rope or chain has to be able to withstand and totally another when talking about dragging/pulling carcasses. Or what are you trying to show now with that pulling force? I´m pretty sure, that even though that 16,8 Kilonewtons could be seen so, that a bear could drag 1700 kg heavy carcass, in reality it´s not the case. It might be able to move it slightly but it would be about very short distances. Maybe some huge Kodiak bear around 650-700 kg could move such carcass a bit more but still not long distances if "normal friction". There is no doubt, that bears are strong but also animals have limits. Bears have shown impressive strength in some occasions, but moving big moose or bison is something which haven´t been seen in video clips in any way near what might be expected after reading some descriptions from the books.
Leopard kills and hoists an adult Warthog up a tree.
 *This image is copyright of its original author  *This image is copyright of its original author  *This image is copyright of its original author original video: https://www.youtube.com/watch?v=5Ud4Sxlixzs The video description states the Warthog is a Boar, but the tusks don't look fully developed. Still, it is nice to see a Leopard hoisting a full grown or comparable sized Warthog up a tree.    
Pound for pound the strongest of the big cats
 *This image is copyright of its original author costotours  (03-27-2021, 03:51 PM)Luipaard Wrote: Pound for pound the strongest of the big cats Robusticity studies disagree with this statement, quite the opposite actually. (03-27-2021, 05:04 PM)H Balam Wrote:(03-27-2021, 03:51 PM)Luipaard Wrote: Pound for pound the strongest of the big cats This is because most don’t understand what Lb for Lb actually is when comparing strength. It’s not just a linear line that should increase 1-1 as weight increases. Good examples are powerlifting where you’ll see lighter weights generally lift 2 to even 3 times their body weight in the squat and deadlift while heavyweights will have a very hard time lifting 2.3 times their weight. Look at Thor, he just broke the deadlift world record at 1100lbs and weighed 425lbs. A little more than double his weight while someone like Dalton Lacoe deadlifted almost 600lbs while weighing 117lbs. That’s almost 5 times his body weight. But if he were to be Thors size, his weightlifting numbers don’t extrapolate 1-1. He still wouldn’t be able to lift as much as Thor. The Wilks vs Sinclair studies were used to help compare actual weight categories to one another https://www.taylorsstrength.co.uk/powerlifting-formulas-is-wilks-best-and-what-are-the-alternatives/ (03-27-2021, 05:46 PM)Pckts Wrote:(03-27-2021, 05:04 PM)H Balam Wrote:(03-27-2021, 03:51 PM)Luipaard Wrote: Pound for pound the strongest of the big cats Yes, this is why robusticity indexes are so helpful, the proportions of skeletal diameter is calculated based on relative to size bases, so even if one cat was larger than the other, as long as they have proportionate thicker bones, it will be proportionally the stronger cat as it will be able to sustain the most pressure. We know that in this regard the pantherines with the most proportionally robust bones are: 1. Jaguar 2. Tiger 3. Lion 4. Leopard In that order.
You two are aware that you cannot really determine this pound for pound ranking right? This is highly subjective and thus my own opinion. It's based on the fact that it's the smallest of the four big cats yet have accomplished feats that are unmatched.
(03-27-2021, 07:58 PM)Luipaard Wrote: You two are aware that you cannot really determine this pound for pound ranking right? This is highly subjective and thus my own opinion. It's based on the fact that it's the smallest of the four big cats yet have accomplished feats that are unmatched. Quote:You two are aware that you cannot really determine this pound for pound ranking right? And yet you proceeded to make a post glorifying the leopard on lb for lb basis in comparison to other bigger and stronger cats with no sound science or evidence to back said claims. FYI, you can in fact determine strength on a lb for lb basis when accounting for the skeletal build of different animals. Unlike things like "photographic evidence", this is actually hard science that is able to deduct conclusions based on statistical analysises, and the leopard does not top the ranking. Quote:This is highly subjective and thus my own opinion. Make sure to add "IMO" then, because certainly your subjective thoughts have little to do with the objective reality we are discussing. Quote:It's based on the fact that it's the smallest of the four big cats yet have accomplished feats that are unmatched. This is a bold, extraordinary statement that requires bold, extraordinary data to back it up, after all you're referring to "facts". So show is with empirical, quantifiable data that leopards "accomplished feats that are unmatched" by other big cats. I'm very curious to read about it. (03-27-2021, 07:58 PM)Luipaard Wrote: You two are aware that you cannot really determine this pound for pound ranking right? This is highly subjective and thus my own opinion. It's based on the fact that it's the smallest of the four big cats yet have accomplished feats that are unmatched. This is quite the contradictory statement. First you say you cannot determine a lb for lb ranking then say it's subjective and only your opinion then finally you go on to say the "fact" that the smallest of the big 4 accomplished feats that are unmatched. So which is it, opinion, undetermined or fact? First off, this claim alone is wrong "the smallest of the four big cats yet have accomplished feats that are unmatched." How you come to the conclusion that dragging an impala sized carcass up a tree is more impressive than dragging a 800kg Bovine or a 100kg Caiman up a steep muddy slope through dense grass. If you want to stick with it being your opinion, that's fine but like I've already shown you, you're interpreting lb for lb wrong to begin with. It's fairly easy to see just given the eye test between these cats. The Leopard is the least physically impressive of the 4, it's build is much more gracile than the other 3, this isn't only true for the males but also the females. Try finding a Female Leopard that compares to the big Tigress, Lioness and Jaguars, you can't. This isn't to take anything away from the Leopard, it's just easily noticeable. |
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