American carnivores evolved to avoid each other, new study suggests

How do the many carnivorous animals of the Americas avoid competing for the same lunch, or becoming each other's meal? A possible answer comes from a new study by a pair of researchers at the University of California, Davis. Their large-scale analysis shows that it's not just chance that's at play, but avoidance strategies themselves that have been a driving force in the evolution of many carnivores, influencing such factors as whether species are active daytime or nighttime, whether they inhabit forests or grasslands, or live in trees or on the ground...

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