Jellyfish are one of the most conspicuous animals in our oceans and are renowned for their propensity to form spectacular blooms. The unique features of the biology and ecology of jellyfish that enable them to bloom also make them successful invasive species and, in a few places around the world, jellyfish have become problematic. As man increasingly populates the world’s coastlines, interactions between humans and jellyfish are rising, often to the detriment of coastal-based industries such as tourism, fishing and power generation. However we must not lose sight of the fact that jellyfish have been forming blooms in the oceans for at least 500 million years, and are an essential component of normal, healthy ocean ecosystems. Here many of the world’s leading jellyfish experts explore the science behind jellyfish blooms. We examine the unique features of jellyfish biology and ecology that cause populations to ‘bloom and bust’, and, using case studies, we show why jellyfish are important to coastal and ocean ecosystem function. We outline strategies coastal managers can use to mitigate the effects of blooms on coastal industries thereby enabling humans to coexist with these fascinating creatures. Finally we highlight how jellyfish benefit society; providing us with food and one of the most biomedically-important compounds discovered in the 20th century. ​

What do herbivores eat? Mostly food from plants! Find out what classifies an animal as a 'herbivore,' as well as how common features like tooth shape reflect an animal's diet. Get and in-depth look at a wide range of fascinating animals from around the world and introduce readers to ideas about the relationships between animals.

This book provides a modern, synthetic overview of what is known about the structure, functioning and interactions of marine and terrestrial systems at the Prince Edward Islands. Building on more than 50 years of biological, geological, meteorological, and oceanographic research, it demonstrates not only how inextricably linked marine and terrestrial systems at the islands are, but also how global environmental challenges, such as climate change, biological invasions, and over exploitation, are playing out at the regional and local levels in the Southern Ocean.

The lion is king of the jungle! The great white shark is sovereign of the seas! The timber wolf is emperor of the forests! But . . . it's lonely at the top of the food chain. It's difficult to fit in when plant eaters can be so cruel—just because you ate a relative of theirs that one time! What's a carnivore to do? Aaron Reynolds's roaringly funny text is perfectly paired with Dan Santat's mouthwatering illustrations, creating a toothsome book that's sure to stand out from the herd. Plus, this is the fixed format version, which will look almost identical to the print version. Additionally for devices that support audio, this ebook includes a read-along setting.

Originally published: New York: Holt, Rinehart and Winston, 1969.

"Explains the concept of a food chain and how plants, animals, and humans are ecologically linked." -- T.p. verso.