Las cadenas alimentarias en el desierto (Desert Food Chains)

Las tortugas gigantes de Galápagos son fascinantes y están en peligro de extinción. Viven solo en las Islas Galápagos, una cadena de islas volcánicas en el Océano Pacífico frente a la costa de Ecuador. Estas tortugas se enfrentan a hilos de los humanos que viven y visitan las islas, así como del cambio climático. Únase a la autora Kate Messner en un viaje a las Islas Galápagos para ver de cerca a estas increíbles criaturas y descubrir cómo la tecnología está ayudando a los científicos a estudiarlas y protegerlas. Galápagos giant tortoises are fascinating—and endangered....

Mammals are a very diverse group. From whales and dolphins that give birth in the water to platypuses that lay eggs, these life cycles can often seem very different. However, they’re very similar. Readers learn the basic structure of the mammal life cycle through simple language and accompanying diagrams that show the cycle step by step. The main content offers a way for struggling readers to more easily learn an important science curriculum topic, but can also be a great review tool for any reader.

The sordid, thrilling, and comic story of two young lovers--affluent Lala and impoverished Guayi; examines the economic and social circumstances of Argentina and Paraguay to make sense of the characters' past choices and present misfortunes.

PROGRAMS OF SOCIO CULTURAL ANIMATION - Three instruments for its design and evaluation - The book presents three instruments for the design, realization and evaluation of programs in socio-cultural animation. The socio-cultural animation programs are erected on two main pillars: - A conception of the person and an active and transforming form of living. - The generation of groups and processes of operative groups to participate freely and responsibly in social action.