When fossils of birds from China’s Jehol region first appeared in scientific circles, the world took notice. These Mesozoic masterpieces are between 120 and 131 million years old and reveal incredible details that capture the diversity of ancient bird life. Paleontologists all over the world began to collaborate with Chinese colleagues as new and wondrous fossil-related discove...(展开全部)

When fossils of birds from China’s Jehol region first appeared in scientific circles, the world took notice. These Mesozoic masterpieces are between 120 and 131 million years old and reveal incredible details that capture the diversity of ancient bird life. Paleontologists all over the world began to collaborate with Chinese colleagues as new and wondrous fossil-related discove...(展开全部)

In a sunlit clearing in central Gondwana, on an otherwise ordinary day in the late Cretaceous, the seeds of Earth's first and greatest civilization were sown in the grisly aftermath of a Tyrannosaurus' lunch. Throughout the universe, intelligence is a rare and fragile commodity – a fleeting glimmer in the long night of cosmic history. That Earth should harbour not just one but ...(展开全部)

In a sunlit clearing in central Gondwana, on an otherwise ordinary day in the late Cretaceous, the seeds of Earth's first and greatest civilization were sown in the grisly aftermath of a Tyrannosaurus' lunch. Throughout the universe, intelligence is a rare and fragile commodity – a fleeting glimmer in the long night of cosmic history. That Earth should harbour not just one but ...(展开全部)

Theropod dinosaurs ruled the planet for millions of years, with species ranging from the mighty Tyrannosaurus rex to feathered raptors no bigger than turkeys. The Encyclopedia of Dinosaurs: The Theropods is a stunningly illustrated guide packed with everything you could ever wish to know about theropods. This one-of-a-kind compendium features more than 3,000 records, covers som...(展开全部)

In the last quarter of the twentieth century, the ideas that most Americans lived by started to fragment. Mid-century concepts of national consensus, managed markets, gender and racial identities, citizen obligation, and historical memory became more fluid. Flexible markets pushed aside Keynesian macroeconomic structures. Racial and gender solidarity divided into multiple ident...(展开全部)

In the last quarter of the twentieth century, the ideas that most Americans lived by started to fragment. Mid-century concepts of national consensus, managed markets, gender and racial identities, citizen obligation, and historical memory became more fluid. Flexible markets pushed aside Keynesian macroeconomic structures. Racial and gender solidarity divided into multiple ident...(展开全部)

Humanity's time is over. Submit or perish, because the Age of Ultron has arrived! The artificial intelligence known as Ultron has fought for years to eradicate mankind...and now, it has all but succeeded. The few remaining heroes are battered, broken, almost beaten and left considering desperate measures - some more desperate than others. But when Wolverine breaks ranks and pur...(展开全部)

For years, the Marvel Universe has lived in fear that the artificial intelligence known as Ultron would one day evolve to fulfill its g reatest desire: to wipe out all organic life and take over the Earth. That day has arrived! The impossible has happened and Ultron rules the planet! And as the few super hero survivors that remain try desperately to stay alive, Luke Cage learns...(展开全部)

In the last quarter of the twentieth century, the ideas that most Americans lived by started to fragment. Mid-century concepts of national consensus, managed markets, gender and racial identities, citizen obligation, and historical memory became more fluid. Flexible markets pushed aside Keynesian macroeconomic structures. Racial and gender solidarity divided into multiple ident...(展开全部)