"No one can live without food, but what you eat is a personal decision. In the tweny-first century, many people are choosing to eat more vegetables and fruits and less meat. But is all meat bad for you? What does science say? And what about sugar and trans fats, which are linked to diabetes and heart disease? In addition to health concerns, people make food choices for ethical and religious reasons. Some ancient religions asserted that killing animals...

The ants need to plan the Blowout Bug Jamboree! But how can they build a thrilling carnival ride for the festival if they don't know how many bugs will come, or how big those bugs will be? This is a colorful and fun-filled introduction to nonstandard measurement, comparison, and organizing and representing data. As caterpillars, butterflies, and other insects are measured and compared in lengths of ants, an amazing plan unfolds. Just in time for the...

"Welcome to the eighth continent! As a graduate student exploring the rain forests of Australia, Meg Lowman realized that she couldn't monitor her beloved leaves using any of the usual methods. So she put together a climbing kit: she sewed a harness from an old seat belt, gathered hundreds of feet of rope, and found a tool belt for her pencils and rulers. Up she went, into the trees. Forty years later, Lowman remains one of the world's foremost arbornauts,...