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The Great Apes

johnny rex Offline
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( This post was last modified: 10-13-2020, 10:50 AM by johnny rex )

(10-13-2020, 09:15 AM)GuateGojira Wrote:
(10-06-2020, 10:58 AM)GuateGojira Wrote: Body size of the Gorilla:

Finally I finished my comparative image of the size of the two gorilla species with its own subspecies:


*This image is copyright of its original author

*This image is copyright of its original author

In order to get all the information available I checked several books and webpages, but must of the information are just random figures and unreliable estimations. Also, I did not used information of captive specimens, altough there is one great study about gorillas in North American Zoos that I will like to include in the future, maybe.

I checked that very few sources used real measurements and some of them are just a copy past from other papers, so when possible I used the original values.




I apologies if I don't provide more details in this moment, but you can make your questions and with pleasure, and if I have the time, I will answere them to you next monday.

Greetings to all.

Body size of the Gorilla, take 2:

Ok, like I promised, here is the new comparative image of the body size of the gorilla species:


*This image is copyright of its original author


As you can see I made several changes in the comparison, including the change on the image of the Eastern lowland gorilla and also I added a comparative image of the average standing height of all the populations.

On the Cross River gorilla standing height, I put a question symbol because at this moment I could not found real standing measurements from this population, so while the image is scaled at 160 cm, we don't know the real height.

Also, please take in count that I use a captive gorilla for the height image and the porpuse is just to show the height, so I don't use images from the species itselfs.

Personally I think that the standing height figures of the Eastern lowland gorillas are to large, but as this is the information provided I will leave it like that.

Hope you like it, save it for future references. If you have questions, please feel free to ask.

Greetings to all.

Do you think these https://cdn.mos.cms.futurecdn.net/YdKowp...0.jpg.webp, https://study.com/cimages/multimages/16/...illa_3.jpg and https://www.alamy.com/stock-photo-silver...d0%26pl%3d are good images for the Western lowland gorilla? I think it is because the gorilla is standing erect on all fours.
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South Africa Astroboy Offline
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( This post was last modified: 10-13-2020, 07:01 PM by Astroboy )

   
The largest living primates. Barrel-chested ape with relatively even hair, a bare black face and chest and small ears. 
The bare shaped brows are joined and the nostril margins are raised. Females are much smaller than males. Gorillas 
locomote by knuckle-walking. Adult males range in height from 165-175 cm (5 ft 5 in-5 ft 9 in), and in weight from 
140-200 kg (310-440 lb). Adult females are often half the size of a silverback, averaging about 140 cm (4 ft 7 in) tall 
and 100 kg (220 lb). Occasionally, silverbacks (adult males) of over 183 cm (6 feet) and 225 kg (500 lb) have been 
recorded in the wild.(Gahonda)
   
   
   
There's has only been a rare moment of a Silverback cross river gorilla
   
Click the link below
https://youtu.be/L7MwhG73erc
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The Panther Offline
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Large silverback Humba.

*This image is copyright of its original author

Hey guys, you've probably noticed that I haven't been posting for a while, my last post was around June or something. Well, I went back to Zanzibar in August and stayed there for a few months with family, I only just got back a couple weeks ago. I went there earlier this year but this time we decided to stay there longer. Anyway I'm glad to see everyone here is doing alright, because this has been a tough year for everyone.
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The Panther Offline
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( This post was last modified: 11-15-2020, 04:42 PM by The Panther )

(10-13-2020, 06:43 PM)Astroboy Wrote: The largest living primates. Barrel-chested ape with relatively even hair, a bare black face and chest and small ears. 
The bare shaped brows are joined and the nostril margins are raised. Females are much smaller than males. Gorillas 
locomote by knuckle-walking. Adult males range in height from 165-175 cm (5 ft 5 in-5 ft 9 in), and in weight from 
140-200 kg (310-440 lb). Adult females are often half the size of a silverback, averaging about 140 cm (4 ft 7 in) tall 
and 100 kg (220 lb). Occasionally, silverbacks (adult males) of over 183 cm (6 feet) and 225 kg (500 lb) have been 
recorded in the wild.(Gahonda)



There's has only been a rare moment of a Silverback cross river gorilla

Click the link below
https://youtu.be/L7MwhG73erc
Nice post. As for Guhonda I don't think he's ever been weighed. Dominant silverbacks especially old males with Guhonda's status have rarely if ever been sedated and weighed, likely due to the effects it would have on the rest of the group. Dominant silverbacks are the most important members of the group, so it's mostly other members like females or youngsters who get sedated for up close medical attention, while for dominant silverbacks it's a last resort to dart them with vitamin laced darts for health reasons, but definitely not to sedate and weigh them. Guhonda is massive just like most old males but I highly doubt he's ever been weighed, so he could be 500 lbs or well past 500 lbs we just don't know. Same can be said for all the other old males too, who are also very large and rival Guhonda.
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johnny rex Offline
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( This post was last modified: 11-15-2020, 05:14 PM by johnny rex )

I believe this is the same Humba, a silverback from Virunga National Park.


*This image is copyright of its original author
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The Panther Offline
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(11-15-2020, 05:13 PM)johnny rex Wrote: I believe this is the same Humba, a silverback from Virunga National Park.


*This image is copyright of its original author

Yes indeed, the same guy.
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johnny rex Offline
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( This post was last modified: 11-20-2020, 09:57 AM by johnny rex )

I'm not sure if this was already posted before. A man was surrounded by a group of Ugandan mountain gorillas. We can see the comparison of size between the man and the silverback.




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johnny rex Offline
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An old video showing Adrian Deschryver with Casimir the silverback trying to intimidated him in Kahuzi-Biega National Park. He (accidentally?) dropped the baby gorilla and Casimir take the baby gorilla away. Some sources said the baby gorilla died a couple of days later because it didn't getting nursed by the females, perhaps due to the baby gorilla being a captive specimen and the others wild gorilla.




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BorneanTiger Offline
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What happens when a macaque monkey tries to steal a banana from an orangutan  Wink



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France Smilodon Offline
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Haha don't mess with the Orangutan !
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The Panther Offline
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( This post was last modified: 11-25-2020, 04:35 PM by The Panther )

Big old Munyinya standing proud. 

*This image is copyright of its original author

He's one of my favourite silverbacks in the park due to his distinguishable features. It's almost like he has a helmet of fur on his head, which I find pretty cool about him.
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The Panther Offline
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Large silverback Rafiki beating his chest. 

*This image is copyright of its original author

He was tragically killed by poachers recently, but the men are going to be serving life in prison for their actions.
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Italy LeoMan Offline
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I'm not an expert but i want to point out that there is a big difference between "the regular weight" of an animal specimen and the same animal being obese. I think the best comparison to understand this subtle concept is the one involving human beings. If you take a look at the weight of humans you will find 50kgs (110lbs) adult males and you also will find 300kgs (660lbs) adult males. I think everyone can agree that if an outside observer from another planet will one day discuss the weights of humans, it will not come to the conclusion that homo sapiens is a 300kgs animal because there are some people with this weight. Of course a 300kgs man is extremely obese and we are not talking about a natural condition because this man is carrying with him over 200kgs of pure fat. The same story with wild creatures like Gorillas or Panthera members Tigers and Lions, you can probably overfed a Lion in a zoo and get an astronomical weight of 300 or 350 kgs but you will have a regular lion and some fat attached to it, you won't get a different built animal.
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Finland Shadow Offline
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(11-20-2020, 10:13 AM)johnny rex Wrote: An old video showing Adrian Deschryver with Casimir the silverback trying to intimidated him in Kahuzi-Biega National Park. He (accidentally?) dropped the baby gorilla and Casimir take the baby gorilla away. Some sources said the baby gorilla died a couple of days later because it didn't getting nursed by the females, perhaps due to the baby gorilla being a captive specimen and the others wild gorilla.





Looks to be as narrator says, that he dropped the baby gorilla on purpose, silverback didn´t look to be in good mood and he was looking to come to get that baby gorilla. If you read books of Dian Fossey she has described how problematic and violent it can be when trying to get gorillas to accept a young gorilla, which isn´t member of the group.
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Finland Shadow Offline
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( This post was last modified: 12-05-2020, 06:49 PM by Shadow )

(12-05-2020, 04:52 PM)LeoMan Wrote: I'm not an expert but i want to point out that there is a big difference between "the regular weight" of an animal specimen and the same animal being obese. I think the best comparison to understand this subtle concept is the one involving human beings. If you take a look at the weight of humans you will find 50kgs (110lbs) adult males and you also will find 300kgs (660lbs) adult males. I think everyone can agree that if an outside observer from another planet will one day discuss the weights of humans, it will not come to the conclusion that homo sapiens is a 300kgs animal because there are some people with this weight. Of course a 300kgs man is extremely obese and we are not talking about a natural condition because this man is carrying with him over 200kgs of pure fat. The same story with wild creatures like Gorillas or Panthera members Tigers and Lions, you can probably overfed a Lion in a zoo and get an astronomical weight of 300 or 350 kgs but you will have a regular lion and some fat attached to it, you won't get a different built animal.

I think, that all understand the difference in between obese and fit. You write a bit in same way like @peter did some time ago when discussing about this issue (outside observer from another planet), maybe you have read it?

Anyway humans are maybe only species able to go to real extremes in obesity, some have been over 600 kg (around 1325 lbs). When looking at wild animals, usually there aren´t any grossly obese ones in wild. Some bears in fall can be absolutely huge even when comparing to other bears, then again they are evolved to carry a lot of fat in the end of the year and come up in excellent shape again when winter is  over, something quite unique. What comes to gorillas, it looks like that some old gorillas are able to be somewhat obese in wild too. Their life is overall quite calm, poachers kill some and leopards kill some, but in big picture they don´t need to run too much or move long distances. Old silverback males don´t have too much to worry about.

Captive animals are a different story, practically any animal can be overfed in captivity.
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