Shh Shh Shark!

Shh Shh Shark! PDF

Author: Jenny Copper

Publisher: Imagine That

Published: 2020-04

Total Pages: 0

ISBN-13: 9781789583175

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Deep under the water, in the ocean blue, noisy sharks are shouting...and waiting for you! Die-cuts on each page reveal the sharks' wobbly eyes and zipper mouths. This fun story with colorful text features lots of noisy words for readers to shout out on each page.

Shark Teeth

Shark Teeth PDF

Author: Sherri Winston

Publisher: Bloomsbury Publishing USA

Published: 2024-01-16

Total Pages: 219

ISBN-13: 154760851X

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From National Book Award longlisted author Sherri Winston comes an important middle grade novel about a girl's tumultuous journey to keep her family together, even when she's falling apart. Sharkita “Kita” Hayes is always waiting. Waiting for her mama to mess up. Waiting for social services to be called again. Waiting for her and her siblings to be separated. Waiting for her worst fear to come true. But Mama promises things are different now. She's got a good job, she's stopped drinking, stopped going out every night-it's almost enough to make Kita believe her this time. But even as Kita's life is going good, she can't shake the feeling that everything could go up in flames at any moment. When her assistant principal and trusted dance coach starts asking questions about her home life, Kita is more determined than ever to keep up appearances and make sure her family stays together-even if it means falling apart herself. As the threat of her family being separated again circles like a shark in the water, the pressure starts to get to Kita. But could it be that Kita's worst fear is actually the best thing that could happen to her family . . . and to her?

Fins into Limbs

Fins into Limbs PDF

Author: Brian K. Hall

Publisher: University of Chicago Press

Published: 2008-09-15

Total Pages: 461

ISBN-13: 0226313409

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Long ago, fish fins evolved into the limbs of land vertebrates and tetrapods. During this transition, some elements of the fin were carried over while new features developed. Lizard limbs, bird wings, and human arms and legs are therefore all evolutionary modifications of the original tetrapod limb. A comprehensive look at the current state of research on fin and limb evolution and development, this volume addresses a wide range of subjects—including growth, structure, maintenance, function, and regeneration. Divided into sections on evolution, development, and transformations, the book begins with a historical introduction to the study of fins and limbs and goes on to consider the evolution of limbs into wings as well as adaptations associated with specialized modes of life, such as digging and burrowing. Fins into Limbs also discusses occasions when evolution appears to have been reversed—in whales, for example, whose front limbs became flippers when they reverted to the water—as well as situations in which limbs are lost, such as in snakes. With contributions from world-renowned researchers, Fins into Limbs will be a font for further investigations in the changing field of evolutionary developmental biology.

Ebook: Vertebrates: Comparative Anatomy, Function, Evolution

Ebook: Vertebrates: Comparative Anatomy, Function, Evolution PDF

Author: Kenneth Kardong

Publisher: McGraw Hill

Published: 2014-10-16

Total Pages: 817

ISBN-13: 0077171926

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This one-semester text is designed for an upper-level majors course. Vertebrates features a unique emphasis on function and evolution of vertebrates, complete anatomical detail, and excellent pedagogy. Vertebrate groups are organized phylogenetically, and their systems discussed within such a context. Morphology is foremost, but the author has developed and integrated an understanding of function and evolution into the discussion of anatomy of the various systems.

Homology, Genes, and Evolutionary Innovation

Homology, Genes, and Evolutionary Innovation PDF

Author: Günter P. Wagner

Publisher: Princeton University Press

Published: 2018-07-10

Total Pages: 494

ISBN-13: 0691180679

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A major synthesis of homology, written by a top researcher in the field Homology—a similar trait shared by different species and derived from common ancestry, such as a seal's fin and a bird’s wing—is one of the most fundamental yet challenging concepts in evolutionary biology. This groundbreaking book provides the first mechanistically based theory of what homology is and how it arises in evolution. Günter Wagner, one of the preeminent researchers in the field, argues that homology, or character identity, can be explained through the historical continuity of character identity networks—that is, the gene regulatory networks that enable differential gene expression. He shows how character identity is independent of the form and function of the character itself because the same network can activate different effector genes and thus control the development of different shapes, sizes, and qualities of the character. Demonstrating how this theoretical model can provide a foundation for understanding the evolutionary origin of novel characters, Wagner applies it to the origin and evolution of specific systems, such as cell types; skin, hair, and feathers; limbs and digits; and flowers. The first major synthesis of homology to be published in decades, Homology, Genes, and Evolutionary Innovation reveals how a mechanistically based theory can serve as a unifying concept for any branch of science concerned with the structure and development of organisms, and how it can help explain major transitions in evolution and broad patterns of biological diversity.

Blood Beef, Dead Shrimp & Gold

Blood Beef, Dead Shrimp & Gold PDF

Author: Gary P. Flood

Publisher: Xlibris Corporation

Published: 2022-06-20

Total Pages: 196

ISBN-13: 1669829952

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This book was fun to write, growing up in Seabrook Texas in my grandmother’s house by the bay allowed me to have freedoms some will never know. I moved into my “nanas” house shortly after the passing of my grandfather Philip Allen portrayed as Bill Davis in the book. Him and Goldie were true to character along with the beautiful Lilian Allen my “Nana”. The meals cooked in that kitchen are reminded to me daily when I look at the sign from her kitchen that my mother gave me after her passing. It sets high and proud in my kitchen “Lillian’s Home Cooking”. I was my grandmothers only grandson and everyone knew it especially my sisters. That may be why she didn’t mind playing such a strong roll in raising me and forgave easy even when I stole her car at the age of 14 in pursuit of California stardom. My mother and sister still reside in that house today and it’s never been a warmer place to visit with mom continuing the tradition of one great loving meal after another. Waking in the summer and running barefoot in nothing but a torn-up pair of jeans all day. Up and down the bay front fishing and burning my bare feet on the hot planks of any pier I could find. Running through the woods that fronted the salty water was my home. In the summer. As I got older I would occasionally deck hand on a shrimp bout out of port Bolivar named the Proud Mary. The story always went that she snagged a real treasure one time and authorities took it all away from the captain that snagged it. True? Not true? I’ll leave that up to you. I like to think it is. The fish houses that cover the point by the Seabrook Kemah bridge are still ran today with the hard-working Vietnamese family’s that carved their strong hold in the 70s. Growing up and raising a family around the salty shores between Seabrook Texas and Galveston island has given me the blessing of knowing some of the most interesting characters. Some so far out they could only be true, you can’t make stuff like that up. The numbers of friends and family that still reside in these areas will always be what I call home.

Development of the Hypothalamus

Development of the Hypothalamus PDF

Author: Gonzalo Alvarez-Bolado

Publisher: Frontiers Media SA

Published: 2015-08-06

Total Pages: 266

ISBN-13: 2889196348

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The hypothalamus is the region of the brain in charge of the maintenance of the internal milieu of the organism. It is also essential to orchestrate reproductive, parental, aggressive-defensive, and other social behaviors, and for the expression of emotions. Due to the structural complexity of the hypothalamus, however, many basic aspects of its ontogenesis are still mysterious. Nowadays we assist to a renewal of interest spurred in part by the growing realization that prenatal and early postnatal influences on the hypothalamus could entail pathological conditions later in life. Intriguing questions for the future include: do early specification phenomena reflect on adult hypothalamic function and possibly on some kinds of behavior? Can early events like specification, migration or formation of nuclei influence adult hypothalamic function? A change in morphological paradigm, from earlier columnar interpretations to neuromeric ones, is taking place. Concepts long taken for granted start to be challenged in view of advances in developmental and comparative neurobiology, and notably also in the molecular characterization of hypothalamic structures. How should we understand the position of the hypothalamus in relation to other brain regions? Should we bundle it together with the thalamus, a functionally, genetically and developmentally very different structure? Does the classic concept of “diencephalon” make sense, or should the hypothalamus be separated? Does the preoptic area belong to the hypothalamus or the telencephalon? The answer to these questions in the context of recent causal molecular analysis will help to understand hypothalamic evolution and morphogenesis as well as its adult function and connectivity. In this Research Topic we have reviewed the fundamentals of hypothalamic ontogenesis and evolution, summarizing present-day knowledge, taking stock of the latest advances, and anticipating future challenges.

The Shark Book

The Shark Book PDF

Author: Steve Jenkins

Publisher: HMH Books For Young Readers

Published: 2021-06-15

Total Pages: 43

ISBN-13: 1328569497

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Caldecott Honor-winning team Steve Jenkins and Robin Page explore the astonishing lives of sharks in this brilliantly illustrated picture book. Perfect for Shark Week and all year round, this ode to the notorious ocean predator with more than four hundred species will blow you out of the water! Sharp teeth, super senses, and those infamous fins--what's not to love about sharks? Caldecott Honor-winning team Steve Jenkins and Robin Page explore one of the world's most notorious--and fearsome--animals. Learn what makes a shark a shark, what sharks like to eat, and how these predators of the deep have evolved. Ever wonder which shark is the smallest? Or the fastest? Even the most deadly? You'll find your answers in The Shark Book, with countless others. In this magnificently illustrated picture book, celebrate one of the worlds oldest species that has continued to capture our imaginations and astonish us for thousands of years.