Evolutionary reconstructions of the total number of heart beats during incubation, according to four different phylogenetic hypotheses (A–D).
<p>Some major clades are identified in A (equal positioning in B) and C (equal positioning in D).</p
Physiology, Evolutionary Biology, Ecology, Developmental Biology, reconstructions, beats, phylogenetic, hypotheses
DOI identifier: 10.1371/journal.pone.0029027.g004
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