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Post by Gorilla king on Sept 14, 2022 9:14:39 GMT -5
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Post by oldindigosilverback on Sept 15, 2022 3:27:01 GMT -5
/\ Good info as ever. You are one of the best gorilla enthusiast on the forums.
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Post by Gorilla king on Sept 15, 2022 7:28:54 GMT -5
/\ Good info as ever. You are one of the best gorilla enthusiast on the forums. Thanks mate. You are the one of the best polar bear/bird enthusiasts.
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Post by Gorilla king on Feb 16, 2023 17:15:51 GMT -5
The misunderstood ape: cognitive skills of the gorilla
Abstract
The evidence sketched in this chapter should lay to rest the popular idea that gorillas Gorilla gorilla are anomalous among the great apes in lacking the intelligence and large brains of all the others. The 'small brain' claim was always based on brain size relative to body size, now increasingly realized to be an inappropriate measure for judging intellectual efficacy. With modern evidence, the feeding adaptation of gorillas emerges as more similar to that of chimpanzees Pan troglodytes than used to be realized. The widely distributed western lowland gorilla (G.g.gorilla) inhabits what is presumably the species' environment of evolutionary adaptedness, the primitive gorilla niche. Gorillas should therefore be seen as tropical forest frugivores, like chimpanzees, supplementing a nutritionally inadequate fruit diet with a range of leaf, shoot, bark, fungus, and animal matter. The ability of some populations of the two eastern subspecies (G.g.beringei and graueri) to colonize montane habitats is, the author suggests, related to gorilla intellect. In social organizations, too, gorillas are now realized to be more chimpanzee-like, with complex mating options for both sexes, and subtle tactics used to manipulate other individuals. Realization of the similarity of gorillas and chimpanzees makes their points of difference especially interesting. The lack of hunting and tool use in wild gorillas may perhaps prove to be ecologically driven, but the difference in the gorilla's behavioral style is very striking, though hard to document.
www.researchgate.net/publication/279894695_The_misunderstood_ape_cognitive_skills_of_the_gorilla
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Post by oldindigosilverback on Feb 17, 2023 1:06:09 GMT -5
/\ Gorillas are intelligent animals.
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Post by Gorilla king on Mar 4, 2023 17:49:55 GMT -5
Comparison of the arm‐lowering performance between Gorilla and Homo through musculoskeletal modeling
Abstract and Figures
Objectives Contrary to earlier hypotheses, a previous biomechanical analysis indicated that long-documented morphological differences between the shoulders of humans and apes do not enhance the arm-raising mechanism. Here, we investigate a different interpretation: the oblique shoulder morphology that is shared by all hominoids but humans enhances the arm-lowering mechanism. Materials and methods Musculoskeletal models allow us to predict performance capability to quantify the impact of muscle soft-tissue properties and musculoskeletal morphology. In this study, we extend the previously published gorilla shoulder model by adding glenohumeral arm-lowering muscles, then comparing the arm-lowering performance to that of an existing human model. We further use the models to disentangle which morphological aspects of the shoulder affect arm-lowering capacity and result in interspecific functional differences. Results Our results highlight that arm-lowering capacity is greater in Gorilla than in Homo. The enhancement results from greater maximum isometric force capacities and moment arms of two important arm-lowering muscles, teres major, and pectoralis major. More distal muscle insertions along the humerus together with a more oblique shoulder configuration cause these greater moment arms. Discussion The co-occurrence of improved arm-lowering capacity and high-muscle activity at elevation angles used during vertical climbing highlight the importance of a strong arm-lowering mechanism for arboreal locomotor behavior in nonhuman apes. Therefore, our findings reveal certain skeletal shoulder features that are advantageous in an arboreal context. These results advance our understanding of adaptation in living apes and can improve functional interpretations of the hominin fossil record.
www.researchgate.net/publication/359162785_Comparison_of_the_arm-lowering_performance_between_Gorilla_and_Homo_through_musculoskeletal_modeling
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Post by Gorilla king on Mar 15, 2023 19:19:33 GMT -5
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Post by Gorilla king on May 26, 2023 13:25:36 GMT -5
The short legs of great apes: evidence for aggressive behavior in Australopiths
Abstract
Early hominins, australopiths, were similar to most large primates in having relatively short hindlimbs for their body size. The short legs of large primates are thought to represent specialization for vertical climbing and quadrupedal stability on branches. Although this may be true, there are reasons to suspect that the evolution of short legs may also represent specialization for physical aggression. Fighting in apes is a behavior in which short legs are expected to improve performance by lowering the center of mass during bipedal stance and by increasing the leverage through which muscle forces can be applied to the ground. Among anthropoid primates, body size sexual dimorphism (SSD) and canine height sexual dimorphism (CSD) are strongly correlated with levels of male-male competition, allowing SSD and CSD to be used as indices of male-male aggression. Here I show that the evolution of hindlimb length in apes is inversely correlated with the evolution of SSD (R(2)= 0.683, P-value = 0.006) and the evolution of CSD (R(2)= 0.630, P-value = 0.013). In contrast, a significant correlation was not observed for the relationship between the evolution of hindlimb and forelimb lengths. These observations are consistent with the suggestion that selection for fighting performance has maintained relatively short hindlimbs in species of Hominoidea with high levels of male-male competition. Although australopiths were highly derived for striding bipedalism when traveling on the ground, they retained short legs compared to those of Homo for over two million years, approximately 100,000 generations. Their short legs may be indicative of persistent selection for high levels of aggression.
onlinelibrary.wiley.com/doi/full/10.1111/j.1558-5646.2007.00061.x
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Post by Gorilla king on May 26, 2023 13:32:23 GMT -5
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Post by gorigorillas492 on Jul 6, 2023 8:58:10 GMT -5
Look at the sheer size of the ELL Gorilla. He will give any Lion a run for it's money.
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Post by Gorilla king on Jul 6, 2023 9:27:44 GMT -5
Welcome to the forum bro. Yeah, most people think its a complete mismatch in favor of the lion, i think that's not the case (especially with the ELL) even though i favor the lion more often than not.
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Post by gorigorillas492 on Jul 6, 2023 9:48:21 GMT -5
Welcome to the forum bro. Yeah, most people think its a complete mismatch in favor of the lion, i think that's not the case (especially with the ELL) even though i favor the lion more often than not. Yes me too. Lions will kill a silverback more often than not, but the cat will have to be cautious and weary in this confrontation. Gorilla bulls can slam with a force of 8,896N on average (2000lbs*4.44822). Lions can paw swipe with a force of 6,528N.
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Post by gorigorillas492 on Jul 6, 2023 9:49:42 GMT -5
Welcome to the forum bro. Thank you.
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Post by gorigorillas492 on Jul 6, 2023 9:52:16 GMT -5
Welcome to the forum bro. Yeah, most people think its a complete mismatch in favor of the lion, i think that's not the case (especially with the ELL) even though i favor the lion more often than not. Yes me too. Lions will kill a silverback more often than not, but the cat will have to be cautious and weary in this confrontation. Gorilla bulls can slam with a force of 8,896N on average (2000lbs*4.44822). Lions can paw swipe with a force of 6,528N. Concrete with a cross-sectional area of around 0.225 cm² (0.035 in²) requires 9000N to break for comparison.
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Post by arctozilla on Jul 6, 2023 9:53:41 GMT -5
Hi, Gori nice to meet you.
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Post by gorigorillas492 on Jul 6, 2023 9:58:01 GMT -5
Hi, Gori nice to meet you. Likewise.
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Post by gorigorillas492 on Jul 7, 2023 11:35:14 GMT -5
Cross River gorilla and Eastern Lowland gorilla.
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Post by oldindigosilverback on Jul 13, 2023 5:35:59 GMT -5
/\ The Eastern lowland silverback gorilla is obviously the heavy one but the cross river gorilla has giant arms in proportion to its body.
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Post by oldindigosilverback on Jul 31, 2023 20:06:34 GMT -5
/\ The Silverback gorilla is obviously the strongest of the three.
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Post by arctozilla on Aug 1, 2023 1:35:15 GMT -5
/\ Human has the weakest bite force among the apes right.
Inviato dal mio 21061119DG utilizzando Tapatalk
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