One of the main tenents of evolutionary biology is that organisms behave so as to maximize the number of their genes that will be passed on to future generations. Parents often produce more offspring then they can rear in case special opportunities or calamities occur. This frequently leads to deprivations and even death of some offspring. This book is about the evolutionary diversity, importance, and consequences of such squeezes. It reviews the theories, field experiments, and natural history of sibling rivalry across a broad sweep of organisms.
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