Blue Machine: How the Ocean Shapes Our World a notoriously difficult bird to

a notoriously difficult bird to master

this tale of the land beneath our feet brings our past to life and puts its future squarely in our hands

change and boundaries

to their nightly hunts and how they raise the next generation

Blue Machine: How the Ocean Shapes Our World a notoriously difficult bird toAll of the Earth's ocean, from the equator to the poles, is a single engine powered by sunlight a blue machine. From the ancient Polynesians who navigated the Pacific by reading the waves, to permanent residents of the deep such as the Greenland shark, which can live for hundreds of years, this book explores the vast currents, invisible ocean walls and underwater waterfalls that all have their place in the ocean's complex, interlinked system. Helen