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  • Pleistocene Mammal Communities and Their Extinction - Springer
    There has been nowhere else where so many (about 37) megamammals (weighing more than 1000 kg) were found, all of which became extinct, during the last 8000–9000 years ago Another 44 species or so of large mammals weighing more than 45 kg and less than 1000 kg also became extinct
  • What are mammals? KS1 Science curriculum - BBC Bitesize
    Mammals live all across the world They can be found living in the ground, in trees, and even in the sea There are many different kinds of mammal, including us humans! Find out more about
  • Dimetrodon - Wikipedia
    Dimetrodon ( d aɪ ˈ m iː t r ə ˌ d ɒ n [1] or d aɪ ˈ m ɛ t r ə ˌ d ɒ n ⓘ; [2] lit ' two measures of teeth ') is an extinct genus of sphenacodontid synapsid that lived during the Cisuralian (Early Permian) epoch of the Permian period, around 295–272 million years ago
  • continent - National Geographic Society
    Today, all continents have great mountain ranges, vast plains, extensive plateaus, and complex river systems The landmasses’ average elevation above sea level is about 838 meters (2,750 feet) Although each is unique, all the continents share two basic features: old, geologically stable regions, and younger, somewhat more active regions
  • Geologic Time - Geology (U. S. National Park Service)
    If we were to shrink the Earth down to the size of a basketball and compress those 4 5 billion years into a few hours we would be able to observe radical changes Continents would race around the globe, sink beneath the sea, rise up again, smash into other continents, build mountains, and erode back into the sea
  • Should We Change Species to Save Them? - The New York Times
    Habitat degradation, invasive species, infectious diseases and climate change have put many native animals in jeopardy and given Australia one of the worst rates of species loss in the world





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