La optimización mecánica en el medio acuático

Ésta es la historia de dos príncipes hermanos unidos por su lucha común contra el usurpador que provocó la muerte de su padre y robó su trono. Ambos irán distanciándose en una rivalidad por la pasión que despierta en ellos la misma fascinante mujer, y porque las propias gestas que les reportan poder y gloria también les hacen saborear el sutil veneno del orgullo, la ambición y la envidia... pues sólo uno puede ceñir la corona. Leeréis una epopeya fantástica pero pseudohistórica, en un mundo imaginario lleno de aventuras.

These titles look at many of the animals typically found in zoos, covering such topics as appearance, behavior, and babies. Vivid photographs compare the habitat and diet of each animal, both in the wild and the zoo.

You re growing up and your body is changing. If you re a girl, you re likely experiencing the start of menstruation, your breasts are making themselves known, and you re noticing new hair that you might want to be rid of. If you re a boy, you may be experiencing something strange as you sleep, or sweating a lot and not wanting to shower. This book is a complete guide to the terrible and marvelous world of puberty."

It is the third Monday in January and school is closed. But do you know why? It's Martin Luther King Jr. Day. Turn the pages of this book to find out what dream Dr. King shared with the world, who Mohandas Gandhi was, how one brave woman helped Martin Luther King Jr. change history. Each book in the Holiday Histories series describes one of America's holidays or special days. Explore the history of each day and learn the real reason why it is important. Discover what special meaning each day might have for you.