Editing FOXP2 (section)

=== Bats ===
''FOXP2'' has implications in the development of [[bat]] [[animal echolocation|echolocation]].<ref name="Preuss_2012"/><ref name="Li_2007">{{cite journal | vauthors = Li G, Wang J, Rossiter SJ, Jones G, Zhang S | title = Accelerated FoxP2 evolution in echolocating bats | journal = PLOS ONE | volume = 2 | issue = 9 | pages = e900 | date = September 2007 | pmid = 17878935 | pmc = 1976393 | doi = 10.1371/journal.pone.0000900 | veditors = Ellegren H | doi-access = free | bibcode = 2007PLoSO...2..900L }}</ref><ref name="Wilbrecht_2003">{{cite journal | vauthors = Wilbrecht L, Nottebohm F | title = Vocal learning in birds and humans | journal = Mental Retardation and Developmental Disabilities Research Reviews | volume = 9 | issue = 3 | pages = 135–48 | year = 2003 | pmid = 12953292 | doi = 10.1002/mrdd.10073 }}</ref> Contrary to apes and mice, ''FOXP2'' is extremely diverse in [[Microbat|echolocating bats]].<ref name="Li_2007" /> Twenty-two sequences of non-bat [[eutherian]] mammals revealed a total number of 20 nonsynonymous mutations in contrast to half that number of bat sequences, which showed 44 nonsynonymous mutations.<ref name="Li_2007" /> All [[cetaceans]] share three amino acid substitutions, but no differences were found between echolocating [[toothed whales]] and non-echolocating [[baleen cetaceans]].<ref name="Li_2007" /> Within bats, however, amino acid variation correlated with different echolocating types.<ref name="Li_2007" />