Birds- An Introduction - Krishnamoorthy, Baranidharan;Rengaswamy, Dhanapal I. F. S.;Karunanithi, Ranjith
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A bird has been described as a 'FEATHERED BIPED'. This description is apt and precise, and can apply to no other animal. Birds are warm-blooded vertebrate animals that have wings, feathers, a beak, no teeth a skeleton in which many bones are fused together or are absent, and an extremely efficient, one-way breathing system. Flying birds have strong, hollow bones and powerful flight muscles. Birds range in size from the tiny hummingbirds to the huge Ostrich and Emu. The science behind evolution, early, extinct and extreme of birds are quite interesting and imperative one.

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Produktbeschreibung
A bird has been described as a 'FEATHERED BIPED'. This description is apt and precise, and can apply to no other animal. Birds are warm-blooded vertebrate animals that have wings, feathers, a beak, no teeth a skeleton in which many bones are fused together or are absent, and an extremely efficient, one-way breathing system. Flying birds have strong, hollow bones and powerful flight muscles. Birds range in size from the tiny hummingbirds to the huge Ostrich and Emu. The science behind evolution, early, extinct and extreme of birds are quite interesting and imperative one.
Autorenporträt
I am Dr.K.Baranidharan working as Assistant Professor in Forestry, I reserve 15 years of teaching, and research experience in the field of Forestry and Wildlife. I have published many articles in national and international journals.