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Modern Weights and Measurements of Jaguars

Canada Balam Offline
Jaguar Enthusiast
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@Pckts I disagree that Lopez was bigger than Joker, imo Joker is easily the largest jaguar captured by a scientific organization and in recent records.

When he was captured last year he increased rather dramatically in total body length to 250 cm, knowing that the tail rarely ever grows past a certain age, he was not too far away from measuring 2 meters of body length, perhaps 185-190 during his second capture. This growth in length would also mean that his already outstanding chest girth measurement of 126 cm would have expanded even more, I wouldn't be surprised if he measured close to 130 cm in chest circumference or more. 

His weight was captured in the scale at 140 kg without him being fully lifted up, this means that it had a lot of velocity and he must have been much heavier than that. In the video of Lopez the biologists can be seen struggling to lift him up the ground but they managed to do it either way, with Joker it was not possible. I believe Joker is one of the rare 150+ kg jaguars.

To compare his measurements, here are some body measurements for African lions across different areas:



*This image is copyright of its original author

*This image is copyright of its original author

The lion on the second graph had a weight of 177.5 kg, but his chest girth of 128 cm would be very similar to that of Joker, assuming Joker did not reach the 130 cm benchmark during his second capture, in which case he could've been even wider. The female at 145 kg too had a similar chest girth at 125 cm. The maximum value of chest girth for male lions of Kalahari was 126 cm as well, Joker in fact had larger measurements than all the lionesses from that sample and some males too, with the largest average of Rhodesian lions being closer to his measurements during the first capture.

Of course lions being taller some of the mass they pack will be spread across a larger frame, but Joker nonetheless compares and at times surpasses adult lions in areas where jaguar morphology is accentuated.

Another interesting point is that if you compare the total body length of Joker at 250 cm with the total body length of the lion and lioness from the second graph, and then subtract the tail length, Joker would still compare quite nicely in body length and may even be longer than the lioness slightly.

We don't know the methods of measurements for the lions but lions are usually measured following the curves of the body as can be exemplified by the Hobatere lions.

Joker is low to the ground but massive in all other areas, he has dimensions akin to a lion/tiger, and we know for a fact he weighed over 140 kg during his last capture. To me he is the clear record holder at the moment.
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RE: Modern Weights and Measurements of Jaguars - Balam - 03-08-2021, 11:24 PM



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