![]() Everything could be going well and you could be wiped off the face of the earth entirely, as if you’d been struck by lightning out of the blue (or hit by an asteroid). This scenario suggests that, no, it’s not predictable. “We’d like to think there’s some order and predictability to life. “This perspective on evolution is terrifying,” he added. It suggests the existence of “a highly diverse, functional ecosystem that was literally in a matter of weeks and months destroyed by a single, catastrophic, completely unpredictable event.” However, Thalassotitan “emphasizes just how diverse the mosasaurs were,” Longrich wrote. With massive jaws and teeth like those of killer whales, Thalassotitan hunted other marine reptiles plesiosaurs, sea turtles, and other mosasaurs. The asteroid was the final blow, sure – but in a different time, or under different circumstances, the impact wouldn’t have been so final. Paleontologists have discovered a huge new mosasaur from Morocco, named Thalassotitan atrox, which filled the apex predator niche. So devastating was this event that some scholars have suggested that biodiversity on Earth was already winding down before the End – species were becoming ultra-niche and stagnant, and so they couldn’t cope with any sudden disruption to their ecosystem. The only animal who would attack an Archaeotherium was Hyaenodon, with its powerful razor jaws, until bear dogs arrived on the continent, driving both to extinction.See, 66 million years ago lines up very well with the Cretaceous-Paleogene (K-Pg) extinction event, the meteorite strike which saw about three out of every four species suddenly become extinct – with very few exceptions, literally no tetrapods weighing over 25 kilograms (55 pounds) survived. ![]() Kelenken is shown to eat Homalodotherium, glyptodonts, and rodents, and Titanis is shown coming into competition with additional predators Smilodon gracilis and Canis edwardii, and is also shown to eat horses.Īrchaeotherium was the largest and most powerful beast of the badlands until the bear dogs arrived, and is depicted evolving into the even larger Daeodon (or Dinohyus) in order to survive against the new threat. The huge terror birds of South and North America, Kelenken and Titanis, are both shown as apex predators. megalodon is shown subsisting on a diet of whales. The bear is shown defeating Smilodon fatalis and Megalonyx, trying to take down Mexican horses, scaring off dire wolves, and even coming into contact with early humans It is shown hunting down Bison antiquus and Mexican horses in large packs.Īrctodus simus, the giant short-faced bear, was one of the largest mammalian carnivore ever to walk the Earth. Using underwater ultrasound imagery, tissue sampling and collecting DNA, they will prove that the great white is the ultimate MEGA PREDATOR. The savage dire wolf was the largest dog on the planet at the time. In South Australia, a fisherman found a half-eaten mako, and shark experts say only one species is responsible. It is depicted defeating dire wolves, living in prides and killing Bison antiquus, and baby mammoths. Smilodon fatalis is shown as an apex predator. ( December 2016) ( Learn how and when to remove this template message) You can provide one by editing this article. This article needs an improved plot summary. North America: Archaeotherium, Hyaenodon, Dinictis, Mesohippus, Poebrotherium, Subhyracodon, Moropus, Merycoidodon, Daeodon, Amphicyon Episodes Oligocene-Miocene: 32-19 million years ago.megalodon, Cetotherium, Squalodon, dugong, great white shark (cameo), green sea turtle (cameo) Miocene-Pleistocene: 20-2 million years ago.South America, North America: Kelenken, Parapropalaehoplophorus, Homalodotherium, Titanis, Canis edwardii, Smilodon gracilis, Hipparion Miocene-Pliocene: 15-3 million years ago.North America: Smilodon fatalis, dire wolf, short-faced bear, American lion, Bison antiquus, Mexican horse, Columbian mammoth, Megalonyx, gray wolf (cameo), grizzly bear (cameo), early humans Pleistocene: 1.8 million-10,000 years ago.The series investigated how such beasts hunted and fought other creatures, and what drove them to extinction. Prehistoric Predators was a 2007 National Geographic Channel program based on different predators that lived in the Cenozoic era, including Smilodon and C.
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