Where do sharks lay eggs? What do shark pups feed on? How many pups can sharks have at a time? Discover the amazing stages of different life cycles and learn how different species are born, grow up and reproduce with this stunning series. Packed with amazing photographs of every stage, labelled diagrams to explain growth and development, fascinating facts and discussion points for further learning.
Where do sharks lay eggs? What do shark pups feed on? How many pups can sharks have at a time? Discover the stages of the shark's life cycle, examining how they're born, grow up, and reproduce.
Sharks are fascinating sea creatures. These cool and complex living things are a species of fish with a unique life cycle. In this accessible and engaging volume, young readers will learn about the life cycle of a shark and how it compares and contrasts with the life cycles of other animals living in oceans around the world. As they deepen their knowledge of the natural world and of these popular predators, they also expand their understanding of essential science curriculum concepts. In addition to the informative main text, useful fact boxes, instructional diagrams, and vibrant photographs enhance the reading experience.
From the candiru to the lionfish, there are so many kinds of fish on Earth. While all have different methods of production, the basic life cycle is the same, from egg to spawning swimmers. Readers are introduced to this general cycle as well as the important vocabulary needed to talk about it, such as fry and spawning. Accessible language and simple diagrams throughout the book provide a way for struggling readers to tackle science curriculum content.
Top-selling science author Sandra Markle presents the story of whale sharks—the largest fish on the planet. Facing threats from commercial fishing as well as climate change, they were categorized as endangered in 2016. Find out how scientists are working to study and protect these gentle giants of the ocean.
Whale sharks are the largest of all fishes, fascinating for comparative studies of all manner of biological fields, including functional anatomy, growth, metabolism, movement ecology, behavior and physiology. These gentle ocean giants have captured the interest of scientists and the imagination of the public, yet their future is uncertain. The conservation status of whale sharks was upgraded to Endangered on the IUCN Red List and the species faces a range of intense threats from human activities. Can these iconic living animals, who have survived for millions of years, survive us? Written by the world’s leading experts in whale shark biology, ecology, and conservation, Whale Sharks: Biology, Ecology and Conservation is the first definitive volume about the world's biggest fish. Chapters include discussions of satellite-linked tags, used to track whale shark movements; genetic sequencing, to examine evolutionary adaptations; even the use of underwater ultrasound units to investigate the species’ reproduction. The editors hope that by collating what is known, they can make it easier for future researchers, conservationists, and resource managers to fill some of the remaining knowledge gaps, and provide the information they need to join the team. As you work your way through this book, we hope that you will develop a sense of awe and marvel at all of our good fortune to share the ocean, and the planet, with this utterly extraordinary species.
