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In its long history, earth has seen all kinds of creatures come and go, both big and small. They have
fascinated us for years, so much so that scientists are looking for ways to bring them back to life. But
today, we will take a look at some animals that are better left in the past. Hera are 10 extinct animals we
shouldn’t bring back. Number one alone is enough to give you nightmares so stand by for that.
Number 10. The Titanoboa
60 million years ago, in the swampy waters of what is now Colombia, there lurked the titanoboa, by far
the biggest snake that ever lived. At nearly 50 feet long and weighing in at 2,500 pounds, it was 10 times
as heavy as the average green anaconda, a giant that now rules titanoboa’s stomping grounds… or
slithering grounds.
Titanoboa was so big, it pushed the boundaries of being able to exist on land and remain in accordance
with the laws of physics. You, me, every cat and antelope and every other creature that inhabits the
earth, we’ve all evolved under the constraints of gravity. Evolution got a bit carried away and produced
the 100-foot blue whale, the biggest critter ever, only because gravity doesn’t affect giants as much in
the sea.
Scientists reckon titanoboa must have also exploited this kind of simulated weightlessness. It was so
outsized that, according to paleontologist David Polly, “almost certainly it would have spent a large part
of its time in water”. Which, in turn, allowed it to grow to titanic proportions.
Number 9. The Dunkleosteus
Dunkelosteus belongs to the Placodermi, a family of armor-plated fishes. More precisely, it was an
arthrodire - one of the more advanced members of the placoderm fish.
Dunkelosteus was probably the largest member of the placoderms, and the largest animal up to that
time, which would stay that way until the evolution of the dinosaurs. The Placodermi first started
appearing in the Silurian, and all of them were extinct by the late Devonian. Fortunately, there are no
modern descendants, and you’ll see the reason why.
It was a vicious, gluttonous hunter, and probably ate whatever hapless creature it could overpower. The
discovery of Dunkleosteus armor with unhealed bite marks strongly suggest that they cannibalized each
other when the opportunity arose. Frequently, fossils of Dunkleosteus are found with boluses of fish
bones, semi-digested and partially eaten remains of other fish. As a result, the fossil record indicates
that it may have routinely regurgitated prey bones rather than digesting them.
Even more terrifying are their mouths, which ironically lack teeth. Instead of actual teeth, Dunkleosteus
possessed two long, bony blades that were extensions of its jaw that could slice through flesh and snap
and crush bones and almost anything else. These plates also sharpened themselves every time the fish
closed its mouth.
Number 8. The Sarcosuchus
Sarcosuchus was a 40-foot-long, 10 ton, crocodile-like reptile from the Cretaceous era that lived in what
are now Africa and South America. Any predator that can move between land and water is even harder
to escape when it wants to eat you. It had a 6 foot long skull that contained 132 teeth. What truly sets
this creature on the top 10 list is that Sarcosuchus was larger than almost all of the dinosaurs that lived
in the same environment, and evidence points to a diet that included large terrestrial prey; this monster
ate dinosaurs. It’s true that its diet consisted largely of fish and it spent most of its time submerged in
the water, but the fact that it could take down something like Suchomimus, a 35 foot long therapod, is
quite troubling.
Number 7. The Mega Piranha
Piranhas are already vicious creatures. They have the reputation of being aggressive and voracious
eaters. For what they lack in size, they more than make up for by gang warfare, they swarm any would
be prey in staggering numbers, taking tiny bites until they prey succumbs to its eventual fate, allowing
these tiny predators to take down animals way bigger than them. Now, if a group of 2 pound piranhas
can do this, imagine what a piranha 10 times that size can do.
The Megapiranha lived in South America between 10 and 6 million years ago, and weighed anywhere
between 20 to 30 pounds.
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