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How boundaries become bridges in evolution – Science Daily
The mechanisms that make organisms locally fit and those responsible for change are distinct and occur sequentially in evolution.

There’s a paradox within the theory of evolution: The life forms that exist today are here because they were able to change when past environments disappeared. Yet, organisms evolve to fit into specific environmental niches.”Ever-increasing specialization and precision should be an evolutionary dead end, but that is not the case. How the ability to fit precisely into a current setting is reconciled with the ability to change is the most fundamental question in evolutionary biology,” says Alex Ba…
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