Gulls are often seen as intruders in our daily lives. But researchers are discovering what really motivates them—and ...

Visit NAP.edu/10766 to get more information about this book, to buy it in print, or to download it as a free PDF. With a growing human population and rising living standards, demand for animal-derived ...

Most environmental scientists agree that producing food from animals has a much greater environmental and climate impact than producing food from plants with equivalent nutritional value. And, yet, ...