| Afroterra | |
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| Tweet Topic Started: Oct 6 2013, 06:12 PM (886 Views) | |
| Admantus | Oct 9 2013, 07:03 PM Post #11 |
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Elusive old one
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Also I forgot to mention, the gravity on this planet is lower than on earth. Have you seen the oliphants from the lord of the rings? Edited by Admantus, Oct 9 2013, 07:09 PM.
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| Armaknee | Oct 9 2013, 08:54 PM Post #12 |
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Beginner
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That wouldn't work... Sauropods were able to attain such sizes for a few reasons, particularly their hollow bones and network of air-sacs. These air-sacs made the animals even lighter and allowed them to maintain a stable body temperature, preventing them from overheating.(There's a formula that explains the larger the animal the harder it is to dissipate heat) Mammals lack these two fundamental features that allow for such proportions. Instead mammals were restricted to the maximum size of an Indricothere and most likely evolved some form of heat dissipation similar to modern day Elephants. Gravity does play a crucial role but biology is even more important
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| Admantus | Oct 9 2013, 09:20 PM Post #13 |
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I agree, brachiosaurus height is a bit over the top. I'm thinking 10 meters is a more reasonable height. |
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| Admantus | Oct 9 2013, 09:37 PM Post #14 |
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Alright. Here is the scenario for afroterra. The planet was chosen because of it's size and distance to its star, which is a little smaller than our sun, and it was just a little bit smaller than earth. It's orbit is eliptical, with no real variations. Then, with everything in place, they began the process of terraforming the world. This required the use of large CO2 pumps and large amounts of liquid water. Although this wasn't a carbon copy of earth, as the scientists had hoped, it was still viable for terran life to live there. 10 million years after terraforming: domain of fungi Water has settled on the surface, and has allowed for the introduction of algae, bacteria, fungi and other simple lifeforms. Here they evolved and prospered, in a very slow ecosystem. Lichen, free from the restraints of HE, has evolved into branching, tree-like forms that have spread all over afroterra. The ground cover is also alien. Bacterial and fungal mats cover the ground, making the planet look multicolored from above. The very slow environmental pressures lead to many diverse forms of fungi and bacteria. They would not be prepared for the next wave of species that were introduced. 20 million years after terraforming: advanced multicellular life arrives The next wave of species to arrive were multicellular plants and invertebrates. From then on, the tempo of life quickened. The settled bacterial mats, not used to getting grazed on, fell into steep decline. All but the hardiest forms of bacterial mat survived the onslaught. The lichen trees too, declined, but survive today only on an isolated archipelago 100,000 miles off the coast of the western continent. The trees, specifically acadia, maple, arucaria, redwood and ginkgo, flourished and evolved into many different forms. Maples and ginkgoes flourished and developed in the moist and temperate regions, as well as producing a couple of tropical forms. Conifers, being tough, resilient trees, were the first to colonize all of afroterra's habitats. Grasses covered huge sects of dry land, producing multiple species. Invertebrates also diversified rapidly. Insects, arachnids, and myrapods colonized the land, growing into many different forms. Mollusks, echinoderms and nematodes experienced an explosive radiation into many different niches, forming the basis of advanced underwater life. 70 million years after terraforming: afroterra gets its namesakes. The planet had to settle down before new species were introduced. Once the planet's oxygen level was high enough, they introduced the afrotheres. These included the three species of elephant, the two species of sirenian, 21 species of tererec, 17 species of elephant shrew, four species of hyrax, and the one species of aardvark. The sirenians, facing little to no competition, spread out into many niches in the warm parts of afroterra's oceans. The elephants remained conservative niche wise, but they also spread out and became afroterra's principal large herbivores. Tenerecs exploded into many niches, with some species becoming large scavengers, while others remained small insectivores. Hyraxes became the principal small to medium sized herbivores, living on all four continents. The aardvark mostly stayed the same, although a bigger species has evolved to take on the giant termite nests on the central continent's northern savannah. Edited by Admantus, Oct 9 2013, 09:38 PM.
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| Olympianmaster | Oct 9 2013, 09:44 PM Post #15 |
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Did I see sirenians? I'm very curious in how they will evolve. I absolutely love manatees :3 |
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| Admantus | Oct 9 2013, 09:45 PM Post #16 |
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I'm thinking that they radiate into more herbivorous niches, and maybe even become fish eaters. I'm skeptical about the latter part though. I'm only saying that because manatees and dugongs are known to eat fish on occasion. |
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| martiitram | Oct 10 2013, 12:44 PM Post #17 |
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Yes I've seen the oliphants.So that's how they look like. |
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| martiitram | Oct 10 2013, 12:49 PM Post #18 |
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Nice , but what about marine mammals which fill the niche of toothed whales!? |
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| martiitram | Oct 10 2013, 12:52 PM Post #19 |
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They could probably evolve omnivores , but that's it , cause they have no teeth.Also , how can you make a project like "Afroterra" or "Future of the World in here"? |
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| Admantus | Oct 10 2013, 07:31 PM Post #20 |
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Are you asking how to make one? Well all you need is some good ideas, a scenario, and bam. If you're asking why i made this, i made this because it was an idea that i had. Manatees and dugongs do have teeth. They are in the back of the mouth. |
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