¿Comen hierba los tigres?

Plants are the living things that have been on the planet longer. How do they manage to protect themselves if they can't move? Explore the different mechanisms that plants use to survive in different habitats.

Presents a collection of poetry and lullabies by a number of Colombian authors and poets including Jose Silva and Eduardo Castillo.

Stem Technology Is A Very Important Topic In Today's World And This Book Will Allow Students To Learn More About Atoms, Molecules, And How Different Temperatures And Situations Affect Them. It Also Introduces Them To The Periodic Table Of Elements And How Even Today More Elements Are Being Discovered And The Periodic Table Continues To Grow.

A foundered Victorian ship looking for the fabled Northwest Passage holds a secret in its icy grave... When Dirk Pitt of NUMAr is almost blown to pieces in a lab explosion, he suspects sabotage. The lab in question belongs to a scientist hoping to use a rare mineral to combat greenhouse gases - but who would want to destroy our one chance to save the planet? However, there are those who will do anything to control such a valuable prize. Pitt's investigations take him to the Arctic in search of a clue to the origins of this precious mineral. There he and NUMAr colleague Al Giordino must battle ...

Isabel, la Reina Católica es una interesante novela sobre la célebre monarca, fundadora de la España actual. Obra fidedignamente documentada por su autor, de ya reconocida trayectoria en la narrativa de carácter histórico, este libro se centra en la vida y obra de la Reina Isabel I de Castilla y Reina consorte de Sicilia y Aragón, por su matrimonio con Fernando de Aragón, una de las figuras más relevantes en la historia de los reinos de la Península Ibérica. Con carácter férreo y sin doblegarse jamás a imposiciones, Isabel mejoró la administración del reino, saneó las...