Ainda não temos significados para "evolved only".
1We also observed that the trait evolved only once as foot-feathered birds share the same haplotype upstream TBX5.
2Or, as with Rolland and Broad, it could quickly forge friendships that otherwise might have evolved only over years.
3Probably it evolved only once.
4Evolution repeats The complex, eukaryotic cells that all animals and plants are built from, containing nuclei and mitochondria, evolved only once.
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