The Reason Why Natural History Giving Reasons for Hundreds of Interesting Fac
The Reason Why Natural History Giving Reasons for Hundreds of Interesting Fac
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In our eReader you can find the full English version of the book. Read The Reason Why Natural History Giving Reasons for Hundreds of Interesting Fac Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Reason Why Natural History Giving Reasons for Hundreds of Interesting Fac
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To quickly assess the difficulty of the text, read a short excerpt:
Because, as the amphibious habits of the seal require the nostrils to be sometimes open and at other times closed, an effort of the animal must be required to produce one or other of these ends. The natural state of the nostrils is to remain closed, and an effort is required to open them when the seal reaches the air.
The wisdom of this provision is evident : the animal hunts its prey beneath the water, and its nostrils being closed by their own exquisite machinery, the seal has no care concern...ing them while capturing its food. But when the capture is completed, and the animal has no more effort to make for that purpose, it returns to the air, and bestows an effort upon the necessity for breathing.
333. Wliy are the eyes of seals very fully and peculiarly developed ?
Because it is by sight principally that they pursue their prey. Their nostrils are necessarily closed when under water, so that they probably have no sense of smell in that situation. Their ears are also small, and become contracted under water ; the sense of sight is therefore their chief guide.
What to read after The Reason Why Natural History Giving Reasons for Hundreds of Interesting Fac?
You can find similar books in the "Read Also" column, or choose other free books by Robert Kemp Philp to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Because, as the amphibious habits of the seal require the nostrils to be sometimes open and at other times closed, an effort of the animal must be required to produce one or other of these ends. The natural state of the nostrils is to remain closed, and an effort is required to open them when the seal reaches the air.
The wisdom of this provision is evident : the animal hunts its prey beneath the water, and its nostrils being closed by their own exquisite machinery, the seal has no care concern...ing them while capturing its food. But when the capture is completed, and the animal has no more effort to make for that purpose, it returns to the air, and bestows an effort upon the necessity for breathing.
333. Wliy are the eyes of seals very fully and peculiarly developed ?
Because it is by sight principally that they pursue their prey. Their nostrils are necessarily closed when under water, so that they probably have no sense of smell in that situation. Their ears are also small, and become contracted under water ; the sense of sight is therefore their chief guide.
What to read after The Reason Why Natural History Giving Reasons for Hundreds of Interesting Fac?
You can find similar books in the "Read Also" column, or choose other free books by Robert Kemp Philp to read onlineMoreLess
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