When scientists at Vanderbilt University took a
closer look at saber tooth tigers' fossils, they expected the predator's teeth
to be filed down and worn, an indicator of the hypothetical food shortage that
killed off the class. Instead, they discovered no such evidence, discounting
the current theory accounting for the saber tooth's death -----via Vanderbilt
University News.------
Larisa DeSantis explains, "The popular
theory for the Megafaunal death is that either the changing climate at the end
of the last Ice Age or human activity - or some combination of the two - killed
off most of the large mammals. In the case of the great cats, we expect that it
would have been more and more difficult for them to find quarry, especially if
they had to compete with humans.
We know that when food becomes limited,
carnivores like the great cats tend to consume more of the carcass they kill.
If they spend more time chomping on the bones, it should cause detectable
changes in the wear patters on top of their teeth."
The study also accounted for American lions and
found the same results: there was no shortage of prey for either of the great
cats. Smilodon's canines, its defining trait, calculated up to 12 inches.
The Saber tooth last stepped foot on the Earth
10,000 years ago when the last of its breed died out.
"Tooth wear patterns suggest that these
cats were not very much overwhelming entire carcasses, as was expected, and
instead seemed to be living the 'good life' during the late Pleistocene, at
least up until the very end, continues DeSantis.
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