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These extinct animals fascinate me. Looks like the poor human was pounced on from above by one of these guys that might have been waiting in ambush. This website is maintained and published by LeadingFolks. Your email address will not be published. Menu Kidz Feed. Search Search for: Search. The Smilodon cats most likely became extinct because their primary source of food -- mammals that were larger than the cats themselves -- died out.
The cats weren't fast or agile enough to catch smaller prey, leading to their eventual extinction. Another genus of saber-tooth cat lived at the same time as the Smilodon variety.
These were the Homotherium cats, which had shorter, flatter teeth. Some paleontologists describe them as scimitar cats. These cats had a slightly larger range than the Smilodon genus. They became extinct about 11, years ago. Researchers have found much older saber-tooth cats in several clay-lined caves near Madrid, Spain. Like the La Brea tar pits, these caves have provided scientists with lots of well-preserved fossil samples.
The cats found there are from the genus Paramachairodus -- oldest genus of saber-tooth cats on the planet -- and the genus Machairodus. These were large cats, but their teeth were shorter than those of the Smilodon genus.
These cats lived around 9 million years ago. These are just a few of the many extinct carnivores that have evolved saber teeth. There are no saber-tooth cats alive today, but there are a few animals with dramatically long canine teeth.
One example is the walrus, which uses its long tusks for everything from social displays to moving on ice. But although these are modified canines, they aren't quite the same as saber teeth because they're rounded rather than flattened from side to side.
However, as living species go, they may be the closest thing you'll see to a pair of saber teeth. Follow the links on the next page to find lots more resources on saber-tooth cats, fossils, dinosaurs and other extinct animals. Megantereon, a saber-tooth cat that lived in South Africa about 2.
Saber-tooth cats, which are commonly yet improperly referred to as saber-tooth tigers, weighed up to pounds and were built like compact lions. There are many different types of saber-tooth cats, and they existed in different time periods.
Some saber-tooth cats lived 9 million years ago, while others lived on Earth up to the last ice age, which was 10, years ago. The more recent saber-tooth cats became extinct due to a loss of available prey. After the mastodons and other large mammals died out, there wasn't enough food to support the saber-tooth cats because they weren't fast enough to hunt the smaller animals. Saber-tooth cats had very pronounced canines, which they used for ripping and slicing the throats and abdomens of their prey.
Even though their canines were massive and intimidating, their jaws weren't strong enough to bite through bones. So, the cats had to use their canines like knives as opposed to crushing the spines of their prey. Saber-tooth cats had baby teeth, just like humans and other mammals have. After their baby canines fell out, the adult canines grew at a rate of 8 millimeters per month for 18 months. It would seem that having such enormous teeth would make biting and chewing rather difficult, but saber-tooth cats' jaws could open up to degrees wide, enabling them to use the canines more precisely.
There are differing views regarding saber-tooth cats' social behavior, and, because they are now extinct, we may never know the truth. Some paleontologists believe that they were social cats that hunted in packs, while others believed them to be solitary stalkers of prey. Scientists have found saber-tooth cat fossils that displayed serious injuries, though the injuries appeared to have healed over time. Many scientists believe that such fossils could not exist unless healthy saber-tooth cats looked after the injured ones.
However, other scientists believe that those fossils came from cats that lived off stored fats and proteins while their injuries healed. Learn more about saber-tooth anatomy. Learn more about how saber-tooth cats worked. Sign up for our Newsletter! A fearsome predator, the sabertooth cat most likely used stealth techniques to ambush its prey, rather than speed. However, it could probably run as fast as 30 mph 48 km for short bursts. Some paleontologists believe that these cats were social animals.
Maternal care of the young was probably important for these cats, as it is for all cats. There is some evidence they may have hunted cooperatively, preying on animals larger than themselves such as bison, camels, and horses.
However, recent studies of Smilodon fossil skeletons show that unlike social lions today, the sizes of the male and female canine teeth are nearly the same.
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