Thylacosmilus and curious history.

When there are two animals that are very similar in weight, size, physical characteristics and occupying the same ecological niche but living in different places and have a different origin, we call this phenomenon convergent evolution. An example would be that we can illustrate the flight of pterodactyls and bats, both fly in a similar way but come from families, genera and different orders.



Well, now let's focus on the case of Thylacosmilus ... if we saw in reality, across the road in front of our house, we might seem an early saber-toothed, a prehistoric Smilodon... But although its appearance was similar, their underclass, order, family, are different Sabertooth Tiger. The Thylacosmilus had nothing to do with the Smilodon, was actually a marsupial and even looked like Sabretooth, was evolutionarily closer to that of a kangaroo Sabretooth we know.

This prehistoric animal appeared in South America about 7 million years ago, when it was an island that was separate from North America. It was stocky, though not enough the Smilodon, as large as the current Cougars and had fangs shaped knives about 15 cm, but unlike the Smilodon, Thylacosmilus fangs did not stop growing. In addition, the fangs are embedded in a cavity having the jaw bone and giving it a very peculiar appearance to its skull. In fact, its name means "pouch saber", referring to this feature.
Possibly be true that were the apex predator in South America, but this lasted until which lasted insulation island continent. This occurred in the late Pliocene and Central America new species were introduced from the north, including a saber-toothed cat but also bigger, more corpulent and willing to put at the top of the food chain. The Thylacosmilus rival, the known Smilodon, had arrived and soon took the place of the predator.
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