Horseshoe Crabs Lived with the Dinosaurs! PDF Download
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Author: Sarah Machajewski
Publisher: Gareth Stevens Publishing LLLP
ISBN: 1482456583
Category : Juvenile Nonfiction
Languages : en
Pages : 26
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Book Description
Ancestors of horseshoe crabs date back over 450 million years. Thats before dinosaurs walked Earth! Readers will find out more about these intriguing arthropodswhich arent even crabs!and theories about why they survived while dinosaurs became extinct. Theyll learn about horseshoe crabs unique behaviors, how theyve adapted over the years, and gain an overall appreciation for these magnificent marine creatures.
Author: Sarah Machajewski
Publisher: Gareth Stevens Publishing LLLP
ISBN: 1482456583
Category : Juvenile Nonfiction
Languages : en
Pages : 26
Get Book Here
Book Description
Ancestors of horseshoe crabs date back over 450 million years. Thats before dinosaurs walked Earth! Readers will find out more about these intriguing arthropodswhich arent even crabs!and theories about why they survived while dinosaurs became extinct. Theyll learn about horseshoe crabs unique behaviors, how theyve adapted over the years, and gain an overall appreciation for these magnificent marine creatures.
Author: Sarah Machajewski
Publisher: Gareth Stevens Publishing LLLP
ISBN: 1482456567
Category : Juvenile Nonfiction
Languages : en
Pages : 26
Get Book Here
Book Description
Ancestors of horseshoe crabs date back over 450 million years. Thats before dinosaurs walked Earth! Readers will find out more about these intriguing arthropodswhich arent even crabs!and theories about why they survived while dinosaurs became extinct. Theyll learn about horseshoe crabs unique behaviors, how theyve adapted over the years, and gain an overall appreciation for these magnificent marine creatures.
Author: Anthony D. Fredericks
Publisher:
ISBN: 9780983011187
Category : Limulus polyphemus
Languages : en
Pages : 0
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Book Description
Traveling from the Delaware Bay to the Florida Panhandle, this examination is a quest through the natural history and science behind one of nature's oldest and oddest survivors--the horseshoe crab. With ten eyes, five pairs of walking legs, a heart half the length of their bodies, and blood that can save a person's life, horseshoe crabs have been on this planet for 445 million years--since long before the dinosaurs arrived. This book explores their unique biology and sex life, explains their importance to medical science and migratory shorebirds, and introduces readers to the people who are working to study and protect them.
Author: Piotr Naskrecki
Publisher: Harvard University Press
ISBN: 9780674019157
Category : Nature
Languages : en
Pages : 296
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Book Description
People Saving Their Trees in Hurricane Sandy will raise funds for charities to plant trees in stricken areas. Read inspiring, heartfelt, and heroic stories from people who used the Tree Whispering Storm Prep Whispers to help their trees survive Hurricane Sandy and to empower themselves in the face of disaster.
Author: Anthony J. Martin
Publisher: Indiana University Press
ISBN: 0253006023
Category : Nature
Languages : en
Pages : 715
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Book Description
Have you ever wondered what left behind those prints and tracks on the seashore, or what made those marks or dug those holes in the dunes? Life Traces of the Georgia Coast is an up-close look at these traces of life and the animals and plants that made them. It tells about how the tracemakers lived and how they interacted with their environments. This is a book about ichnology (the study of such traces) and a wonderful way to learn about the behavior of organisms, living and long extinct. Life Traces presents an overview of the traces left by modern animals and plants in this biologically rich region; shows how life traces relate to the environments, natural history, and behaviors of their tracemakers; and applies that knowledge toward a better understanding of the fossilized traces that ancient life left in the geologic record. Augmented by illustrations of traces made by both ancient and modern organisms, the book shows how ancient trace fossils directly relate to modern traces and tracemakers, among them, insects, grasses, crabs, shorebirds, alligators, and sea turtles. The result is an aesthetically appealing and scientifically grounded book that will serve as source both for scientists and for anyone interested in the natural history of the Georgia coast.
Author: Carl Nathaniel Shuster
Publisher: Belknap Press
ISBN: 9780674011595
Category : Limulus polyphemus
Languages : en
Pages : 0
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Book Description
This book brings together 20 scientists who have worked on all aspects of horseshoe crab biology to compile the first fully detailed, comprehensive view of Limulus polyphemus. An indispensable resource, the volume describes behavior, natural history, and ecology; anatomy, physiology, distribution, development, and life cycle.
Author: Caroline Arnold
Publisher: Charlesbridge Publishing
ISBN: 1607348365
Category : Juvenile Nonfiction
Languages : en
Pages : 35
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Book Description
You haven’t changed a bit! Living fossils, or modern-day animals that very closely resemble their ancient relatives. Meet the coelacanth, horseshoe crab, dragonfly, tuatara, nautilus, and Hula painted frog. All are living fossils. Why have they changed so little over time, while other animals evolved or went extinct? Using contrasting "then" and "now" illustrations, veteran nonfiction writer Caroline Arnold alternates between a prehistoric creature in its native environment and its contemporary living-fossil counterpart. An amazing way to experience the ancient past! Back matter includes a time line, additional information about the six living fossils, a glossary, and suggestions for further reading.
Author: William Sargent
Publisher: University Press of New England
ISBN: 1584655313
Category : Science
Languages : en
Pages : 137
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Book Description
Surviving almost unmolested for 300 million years, the horseshoe crab is now the object of an intense legal and ethical struggle involving marine biologists, environmentalists, US government officials, biotechnologists, and international corporations. The source of this friction is the discovery 25 years ago that the blood of these ancient creatures serves as the basis for the most reliable test for the deadly and ubiquitous gram-negative bacteria. These bacteria are responsible for life-threatening diseases like menengitis, typhoid, E. coli, Legionnaire's Disease and toxic shock syndrome. Because every drug certified by the FDA must be tested using the horseshoe crab derivative known as Limulus lysate, a multimillion dollar industry has emerged involving the license to "bleed" horseshoe crabs and the rights to their breeding grounds. Since his youthful fascination with these ancient creatures, William Sargent has spent much of his life observing, studying, and collecting horseshoe crabs. As a result, he presents a thoroughly accessible insider's guide to the discovery of the lysate test, the exploitation of the crabs at the hands of multinational pharmaceutical conglomerates, local fishing interests, and the legal and governmental wrangling over the creatures' ultimate fate. In the end, the story of the horseshoe crab is a sobering reflection on the unintended consequences of scientific progress and the danger of self-regulated industries controlling a limited natural resource.
Author: Pat Spain
Publisher: John Hunt Publishing
ISBN: 1789046572
Category : Nature
Languages : en
Pages : 161
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Book Description
On the Hunt in West Africa finds Bostonian Pat Spain, an inexperienced but enthusiastic traveler and wildlife biologist, on the first shoot of his new National Geographic TV series in Cameroon, the Congo, and the Central African Republic. He was told it would be his “trial by fire” for the world of wildlife TV, and soon finds that to be literally true after their decrepit pick-up truck catches fire while doing 100 MPH on a dirt road. Things only get more uncomfortable for Pat from there as he experiences the wildlife (getting charged by a silverback gorilla and having a killer bee land on his exposed penis), the food (eating rat and face-meltingly hot peppers), and some local traditions (he's almost arrested, accidentally married, and inadvertently invites an evil forest spirit to live in the Pygmy village he's staying in), and somehow manages (in his mind, at least) to solve the mystery of Mokele M'Bembe - a supposed living dinosaur in the riverways connecting these three countries.
Author: Donald R. Prothero
Publisher: Columbia University Press
ISBN: 0231543166
Category : Science
Languages : en
Pages : 891
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Book Description
Donald R. Prothero’s Evolution is an entertaining and rigorous history of the transitional forms and series found in the fossil record. Its engaging narrative of scientific discovery and well-grounded analysis has led to the book’s widespread adoption in courses that teach the nature and value of fossil evidence for evolution. Evolution tackles systematics and cladistics, rock dating, neo-Darwinism, and macroevolution. It includes extensive coverage of the primordial soup, invertebrate transitions, the development of the backbone, the reign of the dinosaurs, and the transformation from early hominid to modern human. The book also details the many alleged “missing links” in the fossil record, including some of the most recent discoveries that flesh out the fossil timeline and the evolutionary process. In this second edition, Prothero describes new transitional fossils from various periods, vividly depicting such bizarre creatures as the Odontochelys, or the “turtle on the half shell”; fossil snakes with legs; and the “Frogamander,” a new example of amphibian transition. Prothero’s discussion of intelligent design arguments includes more historical examples and careful examination of the “experiments” and observations that are exploited by creationists seeking to undermine sound science education. With new perspectives, Prothero reframes creationism as a case study in denialism and pseudoscience rather than a field with its own intellectual dynamism. The first edition was hailed as an exemplary exploration of the fossil evidence for evolution, and this second edition will be welcome in the libraries of scholars, teachers, and general readers who stand up for sound science in this post-truth era.
