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credits: jaguartigreamericanocangus6191

credits: henriqueolsen

According to information from three years ago, this adult jaguar with honey-colored eyes, found in Brazil’s Atlantic Forest, was approximately five years old, measured 1.3 meters in length, and weighed around 54 kg.

Currently, her estimated age would be around 8 years, remaining an important symbol in the conservation of the last major remnants of the Atlantic Forest in Brazil.

(In photo 04) her massive and thick canines stand out, showcasing the power of this impressive female jaguar.

credits: jaguartigreamericanocangus6191

credits: jaguartigreamericanocangus6191

credits: jaguartigreamericanocangus6191

Previously, there were only records of jaguars killing water buffalo in Colombia and in Brazil on farms, with no confirmed records in the Brazilian Pantanal.

Recently, biologist Joares May (Onçafari / Panthera) presented a case from Porto Jofre, where a jaguar attempted to prey on an adult wild female water buffalo and managed to rip off the horn sheath.

During the attempt, the jaguar also lost one of its canines, showing the intensity of the encounter.

This occurred at Jofre Velho ranch, an area with a high presence of wild water buffalo, which are also used to protect cattle due to their more combative behavior toward jaguars.

Joker is the heaviest Pantanal jaguar ever captured by the Onçafari team. During his second capture, he exceeded 140 kg in partial weight, but his total weight could not be fully recorded, as he was so heavy that the biologists were unable to completely lift him off the ground.

Even so, veterinarians successfully collected all of his body measurements.

Using this data, data regression analyses were performed, and according to material shared by the Jaguarland community, his weight was estimated at around 150–159 kg, with a central estimate close to 155 kg.

The same text also mentions that, based on these measurements, Joker is attributed an estimated weight of 155 kg, making him one of the largest jaguars recorded in modern times. For comparison, another large individual, López, reached 148 kg.

Body measurements of Joker:

Head circumference: 78 cm

Neck circumference: 70 cm

Chest circumference: 128 cm

Shoulder height: 79.6 cm

Body length: 180 cm

Tail length: 75 cm

Total length: 255 cm

In the reference material, biologists describe him as one of the largest jaguars in the Pantanal, based on his size and measurements.

credits: @jaguartigreamericanocangus6191

According to travelers, researchers, and conservationists in Brazil, especially in Porto Jofre:

One of the first documented cases showed two male jaguars forming a coalition, known as Cuachicqueh.

For years, jaguars were believed to be strictly solitary, intolerant even toward other males.

But Baguá (photo 01) and Xingú (photo 02) challenged that idea.

They united.

They cooperated.

And revealed something rarely considered in this species:

Even a solitary top predator can form alliances.

credits: jaguartigreamericanocangus6191

credits: jaguartigreamericanocangus6191

First photographic record by José Augusto De Mota, former IBAMA employee and wildlife photography hobbyist. The image shows a rare black jaguar next to a huge spotted jaguar on the Cristiasaçú River, a tributary of the Araguaia River in Brazil. A truly unique and striking moment in the wild.

credits: jaguartigreamericanocangus6191

credits: @jaguartigreamericanocangus6191

Tarobá was located in the same area for several days.

The reason: he had killed an adult tapir.

The skull showed visible damage, associated with the jaguar’s bite.

Thanks to this prey, he remained feeding and resting in the area.

A documented behavior of the jaguar in its natural environment.

credits: white.emilio

According to reports, there was a documented case of a 41 kg jaguar dragging the carcass of a 180 kg heifer for approximately 200 meters through a steep, rocky ravine in a dense forest.

In another case in Venezuela, according to reports, a jaguar killed a cow on the bank of a river, dragged its carcass into the water, and swam across 800 meters of the river while carrying it in its jaws.

In Cojedes, Venezuela, in 2015, according to reports, a male jaguar dragged the carcass of a cow for approximately 200 meters to feed in a safer and more secluded location, a feat that was considered a remarkable demonstration of strength.

In Brazil, particularly in the Brazilian Pantanal, according to reports (09/06/2020), Onça Atrox wrote that a researcher witnessed a jaguar dragging the carcass of a tucura bull weighing over 500 kg. When he illuminated the scene with a flashlight, he observed that the carcass had been dragged to a four-strand smooth-wire fence and was no longer in its original position. The jaguar attempted to pull the carcass beneath the lowest wire, which was about 40 cm above the ground, breaking one of the bull’s horns in the process. According to the account, the jaguar successfully dragged the massive carcass under the fence and then pulled it another 15 meters westward.

Another reported feat of strength involved an Atlantic Forest jaguar in Brazil that dragged the carcass of a heifer weighing between 300 and 400 kg for more than 20 meters. The attack occurred on a farm located virtually within the urban perimeter of a city.

According to reports cited by naturalist and President Theodore Roosevelt, a jaguar killed a horse and dragged its carcass for 1,609 meters (one mile).

Also according to reports, Colonel Cândido Rondon found a horse that had been killed by a jaguar and dragged for a mile.

credits: jaguartigreamericanocangus6191