Watch an abandoned building being demolished and a new one rise up in its place. Observe concrete cutters, bulldozers, excavators, concrete mixers, cranes, tunnel borers and steam rollers at work on a building site, at a boatyard, building an underground tunnel, a motorway and a dam. Learn about all the different people involved in each stage of construction: architects, masons, carpenters, plumbers, electricians and many others.
The grandmother leads and protects her herd, the elephant calf is born and takes its first steps. Watch elephants young and old trumpet, feed, splash, and play. Learn to distinguish between African an
Find out all about these ancient reptiles that have existed since the time of the dinosaurs. Learn what makes them such effective hunters, and how they swim and communicate with each other. Watch them hunt, fight, reproduce, and look after their young. Discover how they have been worshiped, persecuted, and finally protected by humans. Learn to identify cayman, alligators gavials, saltwater crocodiles, and other reptiles.
A unique look at the many varying ways, times, and places that different animals sleepMammals, insects, fish, and reptiles all get tired like us and need to sleep. This book illustrates vividly how and where they sleep in many different ways and at different times. Fish, snakes, and insects sleep with their eyes open. Birds sleep perched in trees without falling off. Bats sleep upside down for 20 hours a day. Sleeping whales and dolphins keep a part of their brains awake at all times so that they can go to the surface when they need air. Horses, elephants, zebras, and giraffes sleep standing up and for less than 4 hours a day.
How does a dolphin swim? How do they give birth in the water? How do they communicate with each other? Learn all about these affectionate and sociable creatures that often swim in large groups, look a
