Posted on 10/01/2007 6:57:03 PM PDT by blam
Sabre-toothed tiger was just a pussycat
By Roger Highfield, Science Editor
Last Updated: 12:01am BST 02/10/2007
It may have had some of the most ferocious teeth ever seen on a mammal but scientists say that the much feared sabre-tooth tiger was actually a bit of a pussycat.
Smilodon, the sabre-tooth tiger, roamed across North and South America until 10,000 years ago
Powerfully built, with upper canines like knives, the sabre-tooth tiger was a fearsome predator of Ice-Age America's lost giants, such as bison and horses, perhaps even mammoths.
But while Smilodon ("knife tooth") may have had an impressive set of teeth, its bite was relatively weak, about one third as powerful as a lion, according to a computer re-creation of how it used its jaws.
Scientists from the University of New South Wales (UNSW) and the University of Newcastle in Australia used a computer-based technique normally used in the analysis of trains, planes and cars to find out what sort of forces a Smilodon skull was able to handle.
Dr Steve Wroe, a palaeontologist at UNSW, said: "For all its reputation, Smilodon had a wimpy bite. It is a bit like a moggy." But "we most certainly are not saying that Smilodon was a wimp," he told The Daily Telegraph. "It remains a truly awesome predator.
"So while our results show that its bite and skull were relatively weak, it more than made up for this with an extraordinarily powerful body and a highly specialised dental 'tool-kit'.
"You could look on it as a biological smart bomb — a balance of precision and power that enabled it to do a very dangerous job very efficiently; that is, killing big animals. Smilodon would have needed to make the killing bite only when there was no real chance of the prey moving whilst being bitten.
"This means biting only when the prey has been pinned to the ground — luckily it had the 'bear-like' build to do this, and huge claws on its 'thumbs' that would help it wrestle even bison-sized animals down to the ground."
The result was a quick kill. In contrast, lions often have to maintain a bite for many minutes to suffocate their large prey. But Dr Wroe described the lion as a "better all-rounder" in the hunting stakes.
"Smilodon was massively over-engineered for the purposes of taking small prey, but a ruthlessly efficient hunter of big game."
For the study, published in the Proceedings of the National Academy of Science, the team compared two similarly-sized specimens; a fossilised Smilodon skull from the La Brea tar pits in Los Angeles, and the skull of a male lion that had lived in Taronga Zoo in Sydney.
The sabre-tooth tiger, whose fossils are found across North America and parts of South America, became extinct only 10,000 years ago. Not agile enough to catch smaller animals, it seems that it died out when its favoured large prey became rarer at the end of the most recent Ice Age.
How Smilodon used its sabres has been contentious for more than a century. Various ideas have been proposed: that the sabres were used to allow the cat to grip on to the backs of mammoths, like climbers using ice-picks, or that they were used to slice open its prey's belly.
I want one.
Haven’t seen the threads, but offhand can’t see why fauna which survived multiple glacial advances would be killed by the last one.
Mark
You can ‘get’ one. Go to Asia and buy a Clouded Leopard (’buy’ as in illegally ....meaning don’t). Clouded Leopards are an interesting species (it is only called a leopard because it has cloudy spots), and it has the longest canines of any cat. Not exactly Smilodon long, but the closest we have to a saber-toothed cat.
That has been a puzzle for archaeologists (of which I am one) for years.
In North America, it was not the glacial advance that led to the mass extinctions of the megafauna, but the glacial retreat followed by a previously unexplained quick advance. That time period also coincides with humans and hunting, but they may not be the cause of the extinctions.
The latest findings suggest that the Younger Dryas glacial advance was caused by a meteor strike over eastern Canada, and that the subsequent rapid cooling doomed Clovis as well as much of the megafauna.
Do a google and find some of the threads/articles. It seems more plausible than most previous theories.
No. It wasn't. Ok? It wasn't. A "pussycat" is that creature that sits on your grandmother's lap and whispers to her that you're worthless and that she should cut you out of the will.
The Sabre-Toothed Tiger was an incredibly deadly killing machine.
Hope you don’t mind if I use that picture as my October background pic.
Jeremiah’s buddy?
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Thanks infidel29. |
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You go first to scratch its ears.
Awwwwwwww, cute kitties.
One theory is that they bit the neck of the prey from below (more reason to think they brought down larger prey). The choppers were well fitted to take out everything vital (blood vessels, breathing tubes, etc) in the neck, without taking the backbone of some of the larger animals of the day.
Darned global warming screwing it up for the pussy cats.
“When those critters died out, so did Smilodon.”
and with the current proposal that a cometary airburst explosion over north america 13000 years ago directly contributed to the extinction of so many large mammals (and humans), this predator would have been on the short list of those whose food chain was disrupted.
Jack Bauer’s cat could beat up Chuck Norris’ cat.
:P
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