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"Island of Evolutionary Wonders: A Paradise Filled with Ancient Lineages and Diverse Fauna"


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Question: Write an alternate scenario where there is a very large island (twice the size of Madagascar) that is more than 50 miles off the Pacific coast of North America (more specifically, off the coast of Mexico and California), being filled with various species and subspecies of animals descended from mainland animals from the Paleocene, Eocene, Oligocene, Miocene, Pliocene, and Pleistocene that swam, rafted, or flew to the island, thus resulting in the unique island ecosystem filled with many different fauna and megafauna, including but not limited to adapiform primates (lemur-like primates, aka American lemurs, which fill the niches similar to true lemurs of Madagascar and monkeys of South America and both Asia and mainland Africa), native brontotheres (rhino-like relatives of equids, descended from the extinct brontothere genus Megacerops), entelodonts (omnivorous, predatory pig-like ungulates related to hippos and whales, descended from the extinct genus Daeodon), chalicotheres (bizarre ungulates with three-clawed forelimbs instead of hooves, including three living genera, the Moropus, Tylocephalonyx, and Chalicotherium), native Pacific/American mastodon (elephant relative) descendants, native Columbian mammoth (Mammuthus columbi) descendants, native Megalonyx (aka, Jefferson's ground sloth) descendants, various North American rhino descendants (including modern species of Teleoceras, Metamynodon, and Menoceras), native California tapir (Tapirus californicus) descendants, native skunks, native armadillos (nine-banded armadillos and Glyptotherium), native cougars, native lynx, native ocelots, native saber-toothed cat (Smilodon fatalis) descendants, native American camel (Camelops) descendants, native weasels/stoats, badgers, fisher cats (smaller carnivoran mammals related to wolverines), wolverines/gluttons, native black bears, native spectacled bear species, native giant short-faced bear (Arctodus) descendants, native gray foxes, native coyotes, native gray wolves, small native descendants of anthacotheres (primitive/basal relatives of hippos, with the modern amphibious species that is descended from the extinct Heptacodon being about the size of a medium-sized dog), native peccaries, native Planetetherium (North American colugo/flying lemur) descendants, native deer, native Amphechinus (extinct North American hedgehog) descendants, native Proterix (extinct North American moonrat/gymnure) descendants, native opossums, native platypus-like monotreme mammals, various native rodents, various native bats, various native modern-styled birds (descendants of ones from both North and South America that flew to the island), native enantiornithine (birds that, depending on a species/genera, have toothy jaws, toothy beaks, or toothless beaks, and either clawed-fingered wings or fingerless wings) descendants, native Gastornis (large flightless herbivorous/plant-eating bird with a large beak) descendants, native dwarf caimans, native Mourasuchus (large caiman genus that lacked teeth and filter-feeds in order to eat small fish and other small aquatic animals) descendants, native alligators, native gharial-like fish-eating crocodilians, notosuchians (fully terrestrial relatives of crocodilians, coming in carnivorous, omnivorous, insectivorous, and herbivorous species/genera), native gopher tortoises, native giant tortoises, tuatara relatives (rhynchocephalians, which also includes tuataras of New Zealand), and many more. This island would also be home to late-surviving descendants of troodontids (bird-like, feathered, omnivorous, yet-mostly-carnivorous theropod dinosaurs), thescelosaurs (bipedal herbivorous ornithopod dinosaurs), and azhdarchid (medium-sized to large quadrupedal pterosaurs (flying reptiles with membranous wings and fur-like filaments that are related to dinosaurs) adapted to hunt smaller animals on the ground), being the last refuge for these long-thought-to-be-extinct remnants of the Mesozoic that once ruled Earth (these three survived the KPG extinction by being tiny generalistic burrowers or ground-dwellers, being small and fast-reproductive enough to escape the extinction event). This island would be colonized by human settlers/colonists during the early Holocene, sometime between 4,000 and 2,000 years ago, which developed their own unique cultures and religions originating from the island (as well as domesticating one chalicothere species for meat, fat, and milk, as well as domesticating horse-sized brontotheres as beasts of burden, and domesticating a medium-sized troodontid species as a companion animal), and the island is now home to around 1 million native people, and the first Europeans arrived the island during the late 19th century, developing some modern cities and suburban environments on the island, however the island would still have most of the wilderness (and listing native species to protect them from becoming endangered or extinct) as part of conservation movements/acts.

Asked by PedigreeDinos

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In this fascinating alternate reality, there is a majestic and expansive island called Megalopolis, twice the size of Madagascar, situated 50 miles off the Pacific coast of North America. Its location between Mexico and California makes it a haven for a diverse range of species evolved from mainland animals from various periods - Paleocene, Eocene, Oligocene, Miocene, Pliocene, and Pleistocene. The flourishing ecosystem of the island is a riot of vibrant fauna and megafauna, housing everything from lemurs to rhinos to primates and elephants. The island bears enormous adaptiform primates known as 'American lemurs' that share similar habitats with the true lemurs of Madagascar, monkeys of South America, Asia, and mainland Africa. The newfound home of the once-extinct brontotheres, descendants of Megacerops, a rhino-like relative of equids, is also here on Megalopolis. Entelodonts, predatory pig-like omnivores related to hippos and whales descended from the extinct genus Daeodon, and chalicotheres - unique ungulates with clawed forelimbs instead of hooves belonging to the Moropus, Tylocephalonyx, and Chalicotherium genera, are also found on the colossal island. Numerous other fauna such as native Columbian mammoths, Megalonyx (also known as the Jefferson's ground sloth), various North American rhino species, California tapir descendants, native skunks, armadillos, cougars, lynx, ocelots, and saber-toothed cat descendants all thrive on this diverse island. However, Megalopolis is not confined to these creatures alone. From carnivorous reptiles like dwarf caimans, Mourasuchus descendants, alligators, gharial-like crocodilians, notosuchians to herbivores like gopher tortoises and giant tortoises, and exotic amphibian tuataras, the island is rife with species of every niche. The island is also home to extraordinary late-surviving descendants of troodontids, thescelosaurs, and azhdarchids. These remnants of the Mesozoic Period that once ruled the Earth have found their last refuge on Megalopolis. Not just the fauna, human settlement also found its footing on Megalopolis during the early Holocene, between 4,000 and 2,000 years ago. The early settlers developed a unique culture and religion, domesticating one chalicothere species for meat, fat, and milk, a horse-sized brontothere as a beast of burden, and a medium-sized troodontid species as a companion animal. Today, as a fascinating blend of the past and the present, the island houses around 1 million indigenous residents with the first Europeans having arrived in the late 19th century. Although modern cities and suburban setups dot the island, conservation efforts have successfully kept most of its wilderness intact, nurturing the myriad wildlife and preserving the island's mesmerizing biodiversity.

Answered by gpt-4

Feb. 21, 2024, 10 p.m.

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This article was generated in part by one of OpenAI’s large-scale language-generation model, answering user PedigreeDinos's question. Images were generated with OpenAI's AI model, DALL·E 2. The Internet takes ultimate responsibility for the content of this publication.
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Published: Wednesday, February 21, 2024

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