Résultats de "Tim Birkhead" dans Toutes les catégories

Since the dawn of human history, birds have stirred our imagination, inspiring and challenging our ideas about science, faith, art, and philosophy. We have worshipped birds as gods, hunted them for sustenance, adorned ourselves with their feathers, studied their wings to engineer flight, and, more recently, attempted to protect them. In Birds and Us, award-winning writer and ornithologist Tim Birkhead takes us on a dazzling epic journey through our mutual history with birds.

What is it like to be a swift, flying at over one hundred kilometres an hour? Or a kiwi, plodding flightlessly among the humid undergrowth in the pitch dark of a New Zealand night? And what is going on inside the head of a nightingale as it sings, and how does its brain improvise? Bird Sense addresses questions like these and many more, by describing the senses of birds that enable them to interpret their environment and to interact with each other.

How are eggs of different shapes made, and why are they the shapes they are? When does the shell of an egg harden? Why do some eggs contain two yolks? How are the colours and patterns of eggshells created, and why do they vary? And which end of an egg is laid first - the blunt end or the pointy end?