Download e-book for kindle: Bats : a world of science and mystery by Fenton, Melville Brockett; Simmons, Nancy B

By Fenton, Melville Brockett; Simmons, Nancy B

ISBN-10: 022606512X

ISBN-13: 9780226065120

ISBN-10: 022606526X

ISBN-13: 9780226065267

There are greater than 1,300 species of bats - or virtually 1 / 4 of the world's mammal species. yet prior to you reduce in worry from those bushy "creatures of the night," contemplate the bat's primary position in our surroundings. A unmarried ten-gram bat may well consume numerous thousand bugs in an evening. during the tropics and subtropics, fruit and nectar-feeding bats also are an important to the lives of crops, delivering both Read more...


There are greater than 1,300 species of bats - or nearly 1 / 4 of the world's mammal species. yet earlier than you cut back in worry from those bushy "creatures of the night," contemplate the bat's fundamental Read more...

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Perhaps they gleaned prey from surfaces after detecting the sounds of beetles hitting the vegetation. 8. Giant sperm of a 17 million year old seed shrimp (ostracod crustaceans) in a phosphatic preservation. The conditions in a Miocene bat cave in the Riversleigh deposits in Australia were ideal for this kind of preservation due to the high levels of phorphorus derived from the bat guano. The spiralization of the sperm is clear in this longitudinal view. The scale is 10 μm long. This discovery is the unexpected benefit of finding fossil bats and the roosts they used.

It would be a few years before I would have an opportunity to study the fossil in person—it was subsequently donated to the American Museum of Natural History—but I have never forgotten the thrill of seeing it for the first time in that photograph and understanding its importance. Not quite a “missing link” between bats and non-flying mammals, it nevertheless gives a snapshot of an earlier stage in bat evolution than previously known. 1. One of only two known specimens of Onychonycteris finneyi, the most primitive known bat.

Gliding mammals—such as flying squirrels and colugos—are not closely related to bats. There is currently no positive evidence that bats passed through a gliding stage in their evolution, although many specialists in bat flight mechanics believe that they did. The details of how bats achieved powered flight remain unclear because no fossil intermediates between Onychonycteris and the non-flying ancestors of bats are known. In short, there are no missing link fossils—or they haven’t been recognized yet.

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Bats : a world of science and mystery by Fenton, Melville Brockett; Simmons, Nancy B

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