big-cats quick facts
- The jaguar kills by biting through the skull, which no other big cat does.
- Its rosettes have extra spots inside them; a leopard’s do not.
- A black panther in the Americas is simply a jaguar with a recessive gene.
- Jaguars swim between trees in flooded forest and hunt caimans in rivers.
- As many as 18,000 a year were killed for fur until CITES stepped in in 1973.
Jaguars at a glance
| Jaguar | |
|---|---|
| Scientific name | Panthera onca |
| Size | 5 to 8 ft from nose to tail tip |
| Weight | 80 to 348 lb across the whole range |
| Where | 18 countries, from Mexico to Argentina |
| Known for | The strongest bite of any cat |
| Prey | Over 85 different species |
| Lifespan | 10 to 15 years in the wild |
| Status | Near Threatened (IUCN) |
It is the only big cat that kills by biting straight through the skull, and it is the only one that hunts in rivers on purpose.
The biggest cat in the Americas
The jaguar is the largest cat in the Western Hemisphere, which means the whole of North and South America.
A jaguar measures 5 to 8 feet from its nose to the tip of its tail. Weights vary a lot depending on where it lives.
In Mexico, males weigh about 140 to 250 pounds and females 100 to 180. In Brazil, males average around 209 pounds and females 171. Across the whole range, the extremes run from 80 to 348 pounds.
Males are usually 10 to 20 per cent bigger than females.
Jaguars are also built differently from leopards. They are heavier and stockier, with thicker legs and a shorter tail.
Rosettes with spots inside
People mix up jaguars, leopards and cheetahs constantly, and there is a simple way to tell them apart.
The answer is to look carefully at the markings on their coats.
A cheetah has solid black spots. A leopard has small rosettes, which are rings of dark fur. A jaguar has larger rosettes with one or two extra dots inside each ring.
That is the giveaway. Spots inside the rings means jaguar.
Every jaguar’s pattern is different, as individual as a fingerprint, which is how researchers tell one animal from another on camera traps.
The bite that goes through bone
Most big cats kill in a similar way. They grip the throat and suffocate their prey.
The jaguar does something else entirely. It bites through the skull.
Panthera, the wild cat conservation organisation, describes jaguars using their powerful jaws to pierce the skulls of prey. The jaguar has the strongest bite of any cat.
Those jaws can get through a caiman’s hide and a turtle’s shell, which very few predators can manage. Our guide to sea turtles explains how tough those shells are.
A skull bite kills instantly. For an animal that hunts caimans and other things that bite back, ending a fight quickly is worth a great deal.
If you want the detail on how that bite compares with other animals, this guide to how strong a jaguar is goes into it.
Over 85 things on the menu
Jaguars are not fussy. Researchers have recorded them eating more than 85 different species.
The list includes capybaras, peccaries, deer, caimans, turtles, anacondas, iguanas and, unfortunately for farmers, livestock.
They prefer medium to large prey, and they are one of the few cats that regularly tackle animals capable of fighting back hard.
Think about what is on that list. A caiman is a crocodile relative with a mouthful of teeth. An anaconda is one of the heaviest snakes in the world. A peccary travels in groups and has sharp tusks.
A jaguar is not picking easy targets. It is picking whatever is nearby, and it is equipped to deal with the consequences.
That variety is part of why jaguars survive across so many habitats, from rainforest to swamp to dry scrubland.
A big cat that likes water
Most cats avoid getting wet. The jaguar swims for a living.
It has large, rounded paws that work well in water.
In forests that flood every year, jaguars swim between the trees to hunt monkeys and sloths up in the canopy. They also hunt in rivers, which is where the caimans are.
Picture that for a moment. A 200-pound cat, swimming, hunting a crocodile relative in its own element, and winning.
Black panthers are jaguars
There is no such species as a black panther.
The term describes any big cat with a black coat, and in the Americas that always means a jaguar.
Black jaguars are melanistic, which means they carry a recessive gene that makes their fur very dark. Recessive means a cub needs the gene from both parents to show it, which is why black jaguars are uncommon.
Look closely at one in good light and you can still see the rosettes, like a pattern printed on black cloth.
They are not spread evenly. Black jaguars occur mostly in South America, especially in dense Amazon forest, and none are found north of Mexico’s Isthmus of Tehuantepec.
Where jaguars live now
Jaguars live in 18 countries, from Mexico in the north to Argentina in the south. Our guide to Mexico covers the northern end of that range.
They are found in rainforest, swampy savanna, thornscrub, desert scrub, deciduous forest and even conifer forest, though they rarely go above 8,500 feet.
Colombia alone holds around 22 per cent of all the jaguars left.
The United States is a harder story. The occasional jaguar is still spotted in the southwest, but there has been no evidence of a breeding population there for over 50 years.
Altogether, jaguars have been wiped out from nearly half of their historic range.
The fur trade, and what stopped it
The 1960s and 1970s were catastrophic for jaguars.
They were hunted for their skins on an industrial scale. Panthera estimates as many as 18,000 jaguars were killed every year.
That ended fairly abruptly in 1973, when CITES, the international agreement controlling trade in endangered species, listed the jaguar under Appendix I. The pelt trade came to a near halt.
It is a rare example of an international rule working quickly and well.
The threats now are different: forests cleared for farming, jaguars shot for killing cattle, and wild prey hunted out from under them. In 2020, wildfires in Brazil’s Pantanal killed jaguars directly.
Panthera’s Jaguar Corridor Initiative tries to keep the remaining habitat joined up across the whole 6 million square kilometre range, so that populations do not become isolated islands. Our guide to ecosystems explains why connection matters so much.
Cubs and family life
A jaguar cub is born at about 16 inches long, which is roughly the length of a school ruler and a half.
Jaguars are solitary animals. Adults live and hunt alone, and a male and female meet only to mate.
So raising cubs is entirely the mother’s job. She hides them, feeds them, and teaches them to hunt.
Life is not long. In the wild, jaguars are estimated to live 10 to 15 years, and few have been documented past 11.
That short life matters for conservation. A population that loses breeding adults does not have many years to recover before the next generation is needed.
Where the name comes from
Jaguars have mattered to people in the Americas for thousands of years, long before Europeans arrived.
They appear across the art and belief of ancient civilisations in Mexico and Central and South America, as symbols of power and of rulers.
That is unusual. Most animals get named for what they look like. This one gave its name to warriors, gods and, much later, a car.
It is worth remembering when you read that jaguars have been wiped out from half their range. This is not just any large animal. It is one that people in the region have been paying attention to for a very long time.
Three things people get wrong
“A black panther is its own species.” It is not. In the Americas a black panther is a jaguar with a recessive gene for dark fur, and you can still see its rosettes in the right light.
“Jaguars and leopards are the same animal.” Jaguars are heavier and stockier, and their rosettes have extra spots inside them. Leopards’ rosettes are smaller and empty.
“Big cats hate water.” Jaguars swim between trees in flooded forest and hunt caimans in rivers. Water is where a lot of their food is.
Did you know? Every jaguar’s rosette pattern is different, which is how researchers tell individual animals apart on camera trap photographs.
Try it
A jaguar can be 8 feet long from nose to tail. Measure 8 feet on the floor and lie down next to it.
Knowledge check
How can you tell a jaguar from a leopard?
Show answer
By the markings. A jaguar’s rosettes have one or two spots inside each ring, while a leopard’s are smaller and empty. Jaguars are also heavier and stockier.
What is unusual about how a jaguar kills?
Show answer
It bites through the skull rather than gripping the throat. It has the strongest bite of any cat, strong enough to get through a caiman’s hide or a turtle’s shell.
Frequently asked questions
How big is a jaguar?
Five to eight feet from nose to tail tip. In Mexico males weigh 140 to 250 lb and females 100 to 180 lb, and across the whole range weights run from 80 to 348 lb.
Is a black panther a jaguar?
In the Americas, yes. Black panther is not a species. It describes a big cat with a dark coat, caused in jaguars by a recessive gene for melanism.
What do jaguars eat?
More than 85 different species, including capybaras, peccaries, deer, caimans, turtles, anacondas and iguanas. They prefer medium to large prey.
Where do jaguars live?
In 18 countries from Mexico to Argentina, across rainforest, swampy savanna, thornscrub, desert scrub and forest. Colombia alone holds about 22 per cent of those left.
Can jaguars swim?
Yes, and they do it often. They have large rounded paws, swim between trees in seasonally flooded forest, and hunt caimans in rivers.
Are jaguars endangered?
They are listed as Near Threatened, with numbers falling. They have been wiped out from nearly half of their historic range.
Sources
- Panthera: jaguar — the 18 countries, the 50 per cent range loss, rosettes versus leopard spots, the skull bite, the 85 prey species, swimming, melanism and the Colombia figure
- Panthera: jaguar fact sheet — the 18,000 jaguars a year killed for fur, the 1973 CITES listing, the 6 million km² Jaguar Corridor and the 2020 Pantanal fires
- US Fish and Wildlife Service: jaguar — weights by country, length, the rosette description, where melanistic jaguars occur, habitat types and lifespan
