Frogs 在线电子书 图书标签:
发表于2024-11-09
Frogs 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024
Ellin Beltz is a biologist, herpetologist and author. She has taught at Northeastern Illinois University, the Morton Arboretum, Trinity Christian College and College of the Redwoods.
"Frogs and toads provide one of the great animal success stories on Earth." In this comprehensive book, renowned herpetologist Ellin Beltz offers a compelling picture of the history of the frog, its anatomical makeup, its place in the natural world and the threats that are seriously reducing its numbers around the world. Today, frogs are found on most islands around the world and on all continents except Antarctica. Frogs live from the warmest and wettest tropical lowlands to about 17,000 feet above sea level in the Himalayas. Some areas of Earth have more frogs than others, but frogs are true survivors. But it isn't easy being green. This hearty amphibian lives both on land and in the water and is exposed to a host of chemical and environmental threats. The frog is an animal that indicates the overall health of the environment in which it lives. It is not too much to say that "as goes the frog, so goes the swamp," and even perhaps the planet. Frogs contains a detailed look at all 31 frog families, allowing the reader to learn more about specific ones and appreciate the range and diversity of this popular amphibian. And, yes, toads are covered here, too. There is also a fascinating section on frogs in myth and culture, showing the place frogs have occupied in art and literature. This handsome book is lavishly illustrated with over 125 color photographs representing the remarkable range and world of an utterly fascinating creature.
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Frogs 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024