Germs Are Not for Sharing / Los gérmenes no son para compartir

Cada animal cría a sus hijos de acuerdo a su instinto. Este libro da cuenta de ello en una variada selección de animales que va desde los pingüinos hasta los guanacos, de los monos a las ballenas. En muchas y diferentes formas de crianza, la naturaleza nos enseña que en la diversidad está el secreto de la vida. Each animal raises its offsprings according to their instinct. This book gives an account of this in a varied selection of animals ranging from penguins to guanacos, from monkeys to whales. In many different forms of parenting, nature teaches us that diversity is the secret of...

Ignacio Zaragoza Seguin was born in Goliad, Texas, in 1829, when Texas was part of Mexico. His family lived on a Mexican fort because his father was a soldier in the army. Ignacio wanted to be a just like his father! When he was seven, Texas became independent from Mexico, and the family had to move to Matamoros, Mexico. Later they moved to Monterrey. Ignacio tried to join the Mexican army in 1846 when the United States declared war, but he was too young. He was finally able to join the armed forces when he turned 24. An outstanding soldier, he was named the commander of the Mexican army and...

Introduces equipment and devices commonly found in a science laboratory, including beakers, a hand lens, a microscope, and telescopes, and describes their use.

No longer famous, journalist Cannie Shapiro writes science fiction under a pen name while raising her teenage daughter, and considers her husband Peter's request to have Cannie's flamboyant sister provide surrogate services so that they can have a second child.