Bird or dinosaur? Birds are the only living animals with feathers, but did you know that some dinosaurs had feathers too? Unlike birds, these creatures had teeth and long, bony tails. They ranged in size from the feisty Microraptor, which was small enough to hold in your hand -- if you weren't afraid of its sharp teeth -- to the Beipiaosaurus, which was over seven feet long. Paleontologists learned about these creatures, which lived approximately 145 million years ago, by studying fossils.
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Through the study of fossils, the discovery that dinosaurs from 145 million years ago had feathers is reviewed while discussing the possible ancestral link to the world's present bird population. Simultaneous.
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Anbieter: Better World Books: West, Reno, NV, USA
Zustand: Good. Washburn, Lucia (illustrator). Used book that is in clean, average condition without any missing pages. Artikel-Nr. 2186088-6
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Zustand: Very Good. Washburn, Lucia (illustrator). Former library book; may include library markings. Used book that is in excellent condition. May show signs of wear or have minor defects. Artikel-Nr. 39305898-75
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Hardcover. Zustand: As New. No Jacket. Washburn, Lucia (illustrator). Pages are clean and are not marred by notes or folds of any kind. ~ ThriftBooks: Read More, Spend Less. Artikel-Nr. G0060290269I2N00