Their greatest strength was also their greatest weakness, which is why modern big cats have smaller, sturdier teeth.
Saber-toothed cats — an umbrella term for a wide variety of felid species with massive, scimitar-like teeth — are some of the most terrifying prehistoric predators, carnivorousness incarnate.
But it turns out the teeth that give them their name and their fearsome reputation were also their greatest weakness.
The problem? While the oversized upper canines were optimal for delivering kill bites and tearing into flesh, they could break if the teeth met bone with force.
“Slicing and crushing are basically the two main things a carnivorous mammal’s teeth can do,” said Narimane Chatar, a postdoc at UC Berkeley studying carnivores. “But for saber-toothed animals, there’s a clear trade off. Those upper canines were extremely efficient but also break very easily.”
As experts on extant big cats are well aware, a hypercarnivore with broken or damaged fangs can struggle to take down their typical prey. That’s what often turns tigers, leopards and lions into man-eaters. (Interestingly, there are no documented accounts of man-hunting jaguars. Jaguar attacks on humans are exceedingly rare, and while they have killed humans, there’s no jaguar equivalent of the Chamapawat Tiger or the Leopard of Rudraprayag.)
A reconstruction of Smilodon, commonly known as the saber-toothed tiger, although it’s not closely related to modern tigers.A reconstruction of Megantereon, a saber-toothed cat that went extinct as late as 350,000 years ago.
During her research, Chatar found the skull and teeth of a saber-toothed cat in Berkeley’s archives and realized it was not the same species associated with saber-toothed cats in the Americas.
Although Smilodon and Homotherium are the most well-known species, “there was a crazy variety of saber-toothed cats,” Chatar said.
Her research has confirmed the prehistoric cat’s sword-like fangs were double-edged, literally and figuratively. Per UC Berkeley:
“In simulations, 3D-printed saber teeth from various species proved ideal at penetrating a gel with the consistency of flesh but fractured easily against simulated bone. In the former tests, Smilodon came out on top. In the latter, Smilodon fared the worst.“
Smilodon lived in the Americas and went extinct about 8,200 years ago. Los Angeles’ La Brea Tar Pits have yielded a number of preserved skeletal remains, making Smilodon and its three sub-species among the best-known prehistoric felids.
Smilodon and Megantereon images via Wikimedia Commons.
The California man was hunting another animal when a herd of African elephants charged him and his professional guide.
The reaction to the trampling death of a “big game hunter” this month can be broken down to two main camps.
One side is in a celebratory mood, saying Ernie Dosio deserved to be trampled by African elephants on April 17 in Gabon, central Africa. His death was poetic justice, they say, delivered by animals of a species Dosio hunted, whose preserved and mounted heads he proudly displayed on his extensive trophy walls back home in California.
On the opposite end are people engaged in the hagiography of the 75-year-old business owner, describing him as a “pillar of the community” and a “great guy” who gave generously to charity.
We like our narratives black and white, our heroes and villains clearly delineated. To most people, Dosio was one or the other.
In reality, the two sides of Dosio are not mutually exclusive. It’s entirely possible he was a good member of the community who had compassion for people. It’s also true that contrary to claims that he was a “conservation hunter,” Dosio took pride in killing animals from critically endangered and protected species, like many who think their wealth entitles them to rob the Earth of wonderful and unique forms of life so they can collect trophies.
Dosio posing with an elephant he killed on an earlier trip.
Indeed, the concept of a “conservation hunter” is an oxymoron. The pro-hunting side says the fees hunters pay for licenses, guides and other services are crucial to fund conservation efforts.
The truth is that the majority of the money finds its way into the pockets of officials in kleptocracies. If the contributions of so-called conservation hunters are supposed to make a difference, then reality proves them to be an abject failure: population numbers for endangered species like elephants, lions, cheetahs and rhinos continue to trend down, and those species will be extinct in a decade or two if we don’t put a stop to poaching, hunting, habitat loss and other threats.
I also have a problem with calling these people hunters.
These men and women are not Jim Corbett roughing it on foot in the British Raj, using their skill and knowledge of the land to take out vicious man-eaters at great risk to themselves.
They are weekend warriors, wealthy tourists who pay tens of thousands of dollars to kleptocratic governments for their blessing to “harvest” the animals they kill. It’s big business: in South Africa alone, the trophy hunting industry brought in $120 million, according to a 2015 estimate. That number is likely considerably higher today.
When he was killed, Dosio was hunting for a yellow-backed duiker, a rare antelope listed as near-threatened on the IUCN red list. He paid Gabon’s government a $40,000 fee to “harvest” the animal.
Trophy hunters don’t stalk by moonlight, rifle in hand, looking for tracks and camping rough.
They are chauffeured around by hired drivers in comfortable, climate-controlled luxury off-road vehicles. They have servants who pitch their tents, cook their meals, light their fires and guard their camps.
They do not track their targets. They pay men to lure the unsuspecting creatures directly into their paths using food as a lure. The lions, leopards and other animals they kill don’t even realize they’re being hunted before the rifle shots end their lives.
Then the hunters retreat to the air-conditioned comfort of their vehicles while their hired servants do the dirty work of beheading the animals so they can be packed up, prepped for display and shipped back to the US, where they will join the heads of other animals killed by these wealthy men and women. Men and women who proudly show off their kills when they invite people to their homes, recounting their heroics to the bored guests, who make appropriately polite noises to pretend they’re impressed.
In addition to the 30 or so animals on display here, photos show the walls on the rest of Dosio’s home are covered with the preserved heads and bodies of animals he’s killed.
Nothing about this grotesque sequence of events resembles hunting. It is killing. It requires no skill, it carries no risk, its outcome is never in doubt, and it serves no purpose other than to pad the egos of people who have lots of disposable income and little self-confidence.
They have their defenders and their haters.
“I knew I was going to enjoy this,” one person wrote in response to a news story about Dosio’s demise.
“Do you think the elephants will mount his head on their walls?” another joked.
Some people speculated that the elephants, a species with notoriously long memories, may have remembered him from a prior encounter.
The more likely explanation is the elephants saw Dosio and one of his guides, both carrying weapons, as a threat to the calf they were protecting. Rather than put the baby and themselves at risk, they attacked first. If that’s the case, humans are at fault for that too, because the elephants know people carrying guns do not have good intentions. It may not have been Dosio who killed a member of that particular herd, but odds are overwhelming that someone has, and the elephants haven’t forgotten.
While celebrating Dosio’s death may provide a cheap dopamine hit and a sense of righteous justice, to be truly on the side of life means to value all forms of it, animal and human.
Dosio, 75, was reportedly a millionaire and owned a business that partnered with vineyards in California.
Celebrating Dosio’s demise means we’re no better than the “hunters” who grin like psychopaths for photos with the animals they’ve just killed. It makes those of us concerned about animal welfare and conservation look like extremists, and it only takes a few bad actors to wreck the efforts of an entire group. If a thousand protesters gather in a city square and two of them become violent, the resulting headlines will be about those two, not the 998 others who peacefully made their opinions known.
The way to fight back against trophy killing is by educating the public about the damage those killers do, by countering their claims that the fees they pay protect other animals, and by pointing out that without drastic intervention, elephants, lions and cheetahs will be nothing more than memories for a few generations, and near-myth to subsequent generations.
Killing, not hunting: this photo of an unnamed trophy hunter and his wife is instructive because it shows trophy “hunts” are never in doubt, never pose a risk to the “hunters,” and require no physical ability.
This also calls for self examination. On an Instagram account I made for Buddy, one I log into two or three times I year, I follow a handful of National Geographic photographers.
One of their images remains indelibly burned into my brain: a beautiful tiger cub, looking happy and full of curiosity about the world, gazing right at the camera. Even though I know I’m anthropomorphizing a bit, I can’t help feeling good about the expression on the young tiger’s face, an expression that looks like an enthusiastic grin. He is radiating joy at life.
And then I read the caption. This cub, this beautiful animal of a species that teeters on the edge of extinction, is growing up on a hunting reserve. His fate is already set. He will be killed, his life cut short by another weekend warrior paying to “harvest” him and mount his head on a wall so he can tell stories about his own bravery to bored friends and acquaintances.
That’s not just inhumane, it reveals something deeply disturbing about the kind of people who take pleasure from killing. Something primal, something that has no place in our civilization if we’re going to mature as a species, overcome our violent instincts, and have a future on this planet without destroying ourselves and taking every other form of life with it.
That’s why we need to be on the side of life. The alternative is reducing this garden world, this paradise, into a cold, lifeless rock.
Jaguars, pumas, ocelots and margays are able to thrive in the same jungles, a unique arrangement that sheds light on how each species lives.
The jungles of Guatemala are teeming with life.
The guttural calls of howler monkeys haunt the rainforest from above, where scarlet macaws hop branches in flashes of red, yellow and blue.
On the forest floor opossums, peccaries, and oversize rodents called pacas move through dense brush, occasionally picked out by the few shafts of light able to break through the canopy. Ocellated turkeys plumed in iridescent copper and emerald advertise themselves to potential mates with thumping sounds, while spider monkeys perch on the weathered stones of long-forgotten Mayan cities that were swallowed by the jungle centuries ago.
As in most tropics, the apex predators are cats — four different species, to be exact. Jaguars sit at the top, unchallenged. Pumas, close in size if not ferocity, also find sustenance in the rainforest alongside ocelots and margays.
Margays are smaller than house cats and resemble tiny ocelots. They’re outstanding climbers, expert hunters, and spend most of their time in trees. Unlike most cat species, which are crepuscular, margays are nocturnal. Credit: Clement Bardot/Wikimedia Commons
How do four medium carnivorous species exist side by side?
By dividing time, space and items on the menu, according to a new study.
Ocelots are extremely adaptable: they’re excellent climbers and swimmers, and can thrive in various environments. Credit: Victor Landaeta/Pexels
The felids hunt at different levels of the jungle at different times of day, and while there’s overlap between prey, each species has its own distinct diet, according to a research team from Oregon State University. Their paper, Niche partitioning among neotropical felids, was published earlier this month in the Journal of Animal Ecology.
As the big kids on the block, jaguars primarily eat peccaries (pig-like ungulates that weigh up to 88 pounds), armadillos, deer and, sadly, ocelots. Apparently membership in Club Felid does not grant the smaller wildcats a pass. Ocelots top out at about 35 pounds, while the largest jaguars weigh in at about 350 pounds, making the smaller cats easy prey.
Pumas opportunistically prey on peccaries and brocket deer, but the majority of their diet is composed of monkeys, both spider and howler. Ocelots and margays naturally go for smaller prey, sticking mostly to rodents and opossums.
As the largest and most powerful cats in the western hemisphere, jaguars are the apex predators of their environment. Credit: Atlantic Ambience/Pexels
While jaguars hunt on the ground and have a well-documented habit of slipping into the water to prey on caiman and crocodiles, pumas, ocelots and margays take advantage of their climbing abilities and lighter frames to reach arboreal prey. That allows pumas, for example, to snag monkeys and arboreal opossum species from the canopy, so they don’t have to compete with jaguars.
The team verified the “spatial, temporal, and dietary niche partitioning” within the Maya Biosphere Reserve by using ground camera traps, arboreal camera traps and fecal samples, which allowed them to confirm the prey each species has been consuming.
Interestingly, margays are the pickiest — or perhaps most limited — of the bunch, preying on only seven species, while the other three cats regularly hunt between 20 and 27 different kinds of animals.
The information gleaned from the study not only helps researchers understand how these species interact with their environment, but also can help guide conservation decisions to safeguard them against extinction.
Pumas, also known as cougars and mountain lions, are adaptable and elusive. Credit: Catherine Harding Wiltshire/Pexels
Today we’re admiring photos of the majestic Amur (Siberian) tiger, a species that has been pulled back from the brink of extinction thanks to the hard work of conservationists.
The Amur tiger, panthera tigris altaica, is the largest subspecies of the largest cat in the world.
Click an image in the gallery to view a higher resolution version:
All images in the gallery above via Wikimedia Commons. Header image via Pexels.
The purveyors of the deceptive posts want you to click, share and argue with other users about the veracity of the photos.
Not only is he the rarest puma in existence, he’s more well-traveled than most humans.
The mountain lion in question has a black coat, unprecedented for his species, and has been popping up all over Facebook. He’s photographed from the passenger seat of a truck cab, his tail in an unbothered curl, crouched amid the brush near a rural road.
Some posters claim they spotted the formidable feline in Mississippi. Others attribute the image to a sister-in-law who lives near Houston or a daughter in Charleston. A user in Louisiana claimed they took the photograph near the bayou, while another places the cat in Wyoming and claims he’s the first-ever documented “shadow cougar.” (Our friend Leah of Catwoods drew our attention to the images last week after seeing posts placing the cat in the south.)
In case it isn’t obvious, all the claims are full of it.
There is no such thing as a melanistic (black) mountain lion, and the big cat in the photo has the physical characteristics of a leopard, an animal that is not native to this hemisphere, let alone this continent.
The real story here is that Facebook remains a fountain of misinformation and Meta (its parent company) doesn’t care. Unscrupulous users will do anything to get attention and the clicks that come with it, and the average Facebook user is happy to indulge them, driving clicks by resharing the hoax content and juicing its algorithmic value by engaging in endless arguments with fellow users about the veracity and provenance of the photos.
Alleged big cat sightings are perfect for this sort of thing because they pique people’s natural curiosity, there’s a whiff of danger — especially when the poster claims the animal was spotted locally — and most people aren’t aware of telltale differences between cat species.
In many ways, the blurrier and more indeterminate the photo, the better: like Bigfoot and the Loch Ness monster, the idea of phantom cats is most fertile in the imagination.
These days you don’t even need a photo to get in on the click-baiting action. I asked Gemini to create an image of a jaguar-like big cat walking along a rural road at night, and this is what the LLM gave me:
In the image prompt, I asked it to make it look like an amateur photo taken with a midrange smartphone camera, but if we really wanted to get artistic, it’s simple enough to add noise, maybe some motion blur and digital artefacts to the image to make it look more like an authentically crappy, rushed shot of an unexpected animal.
Here’s the result of some simple efforts to en-crapify the “photo” further:
To give the image urgency and encourage people to engage with it, I can make it local and claim it was recent. Errors of grammar, spelling and punctuation add a nice seasoning of authenticity, along for feigned concern for others as the reason for sharing:
“Folks – just wanted to tell ya’ll to mind your pets an make sure of you’re surroundings bc theres a big cat on the lose!! my cousins GF took thus friday nite on Route 9 a few mile’s south of Dennies. a real honest to goodness black panther! BE SAFE!!!”
There’s a dangerous animal on the loose in your area! You know what you have to do: share it so others can bring their pets safely inside and stop their kids from playing outdoors, at least until it looks like the predator has moved on.
It’s your duty as a good American!
Since it doesn’t seem to matter if a quick reverse image search can settle the question of where an image came from, it’ll be interesting to see if anyone lifts the above image and text.
At the very least, maybe a few people who do think to run a search will find their way here, read about the hoax, and save themselves from getting drawn into online debates about the existence of cryptid cats.
Pain In The Bud 