SINGLE EVENT. “Molecular data suggests that a single transformation to toothless adults occurred in the common ancestor of all living mysticetes.”
http://journal.frontiersin.org/article/10.3389/fmars.2017.00067/full
SINGLE EVENT. “Molecular data suggests that a single transformation to toothless adults occurred in the common ancestor of all living mysticetes.”
http://journal.frontiersin.org/article/10.3389/fmars.2017.00067/full