jueves, 2 de junio de 2011

Winners of mass extinction: With predators gone, prey thrive

ScienceDaily (2011-05-03) -- In modern ecology, the removal or addition of a predator to an ecosystem can produce dramatic changes in the population of prey species. For the first time, scientists have observed the same dynamics in the fossil record, thanks to a mass extinction that decimated ocean life 360 million years ago.

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