Contact: David Salisbury
Caption: Two recent high-profile phylogenetic studies reached conflicting conclusions about whether snail's closest relatives are bivalves or an enigmatic group called tusk shells. Vanderbilt phylogeneticists suggest that the cause of this conflict is that the three groups diverged rapidly a long time ago.
Credit: Antonis Rokas, Vanderbilt University
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Related news release: Untangling the tree of life