National Geographic, Volume 203National Geographic Society, 2003 - Geography |
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Page 16
... mammals evolved in the Southern Hemisphere came in the form of jawbones and teeth . allowed the skulls of later mammals to expand sideways and backward - enabling mammals to develop bigger brains . The teeth of the mor- ganucodontids ...
... mammals evolved in the Southern Hemisphere came in the form of jawbones and teeth . allowed the skulls of later mammals to expand sideways and backward - enabling mammals to develop bigger brains . The teeth of the mor- ganucodontids ...
Page 21
... mammals have dominated most of the world for the past 65 million years . However , there are some dissenters . Marilyn Renfree , a marsupial specialist at the Univer- sity of Melbourne , says that biologically speak- ing , " marsupials ...
... mammals have dominated most of the world for the past 65 million years . However , there are some dissenters . Marilyn Renfree , a marsupial specialist at the Univer- sity of Melbourne , says that biologically speak- ing , " marsupials ...
Page 31
... mammals as the Miocene drew to a close . The Earth grew colder and drier still . Ice caps formed in the Arctic . The Sahara began taking over North Africa , and savannas spread across much of the continent . The changing climate ...
... mammals as the Miocene drew to a close . The Earth grew colder and drier still . Ice caps formed in the Arctic . The Sahara began taking over North Africa , and savannas spread across much of the continent . The changing climate ...
Contents
The Rise of Mammals2 | 2 |
38 | 3 |
sica belongs to France In their hearts many Corsicans arent so sure | 57 |
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