Beschreibung:
Virtually all life on Earth, from bacteria to humans, needs iron to survive. From facilitating oxygen flow in mammals to assisting migrating birds in finding their way south for the winter, iron serves a variety of definitive roles for nearly all living creatures.
What was iron doing at life's birth? : life without oxygen Catastrophe : the arrival of oxygen Grabbing and storing : controlling iron The smallest living magnets : avoiding oxygen Hemoglobin and myoglobin : harnessing oxygen Migrating animals : magnetic travel Iron and the planet's ecosystem : seas and soils Feeding the world's poor : iron deficiency