Article
Uniqueness and predictability in evolution and the history of mollusks.
Proceedings of the National Academy of Sciences of the United States of America - 3 Mar 2026
Vermeij Geerat J, Thomson Tracy J
Abstract excerpt
Evolution is a historical process whose trajectories are determined in part by the introduction of new phenotypes. Although most phenotypes have evolved repeatedly within and among clades of organisms, others are unique and apparently originated only once, and even the earliest occurrences of repeated traits were unique for their time. To investigate the timing and circumstances of these unique events, we...
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