The Aquatic World of Penguins: Biology of Fish-Birds (Fascinating Life Sciences) free ebook download.

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The Aquatic World of Penguins: Biology of Fish-Birds (Fascinating Life Sciences) free ebook download

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Mathematics

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Author(s):	David G Ainley

Date:	2024	Format:	pdf	Language:	English	ISBN/ASIN:	3031339894
Pages:	589	OCR:		Quality:		ISBN13:
Uploader:	alex21s	Upload Date:	12/10/2023 7:25:53 PM

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Centuries ago, when penguins were first encountered by European explorers, they were not thought to be birds but rather a fish-like relative. Subsequent accumulation of knowledge has shown penguins to be an avian species with unrivaled aquatic attributes, owing to a number of evolutionary adaptations: shape change, low drag, ability to regulate buoyancy, and extraordinary surface compliancy from their featheration. They are indeed the most extremely specialized diving bird, having given up flight (which otherwise is hugely advantageous) to the benefit of underwater prowess (such as speed, maneuverability and an ability to exploit an extraordinary range of depths). This flightlessness, however, also comes with costs that are substantial for a seabird (such as the inability to cover large distances quickly in reaction to ephemeral prey)  and the energy needed to cope with moving through an aqueous environment, which is more resistant than air. For penguins, the high energetic costs in exploiting the ocean environment thus makes them especially sensitive to changes in food availability or their access to their prey.

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	Title	Link	Password	Size (MB)	Thank to	Inform Admin
3213828	Book	https://nitroflare.com/view/39D8E4E1D7B5...		0.00	alex21s

Tags: Aquatic Biology Fascinating Fish-Birds Penguins Sciences World

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