the foxp2 sequences of mice were most different from those of
FOXP2 The FOXP2 gene is highly conserved in mammals.[41] Human gene differs from non-human primates by the substitution of two amino acids, threonine to asparagine substitution at position 303 (T303N) and asparagine to serine substitution at position 325 (N325S).[32] In mice it differs from that of humans by three substitutions, and in zebra finch by seven amino acids.[17][42][43] One of the two amino acid difference between human and chimps also arose independently in carnivores and bats.[13][44] Similar FOXP2 proteins can be found in songbirds, fish, and reptiles such as alligators.[45][46]
Mighty Mouse Beginning in 1945, some Mighty Mouse episodes had operatic dialogue, and he was drawn slightly differently. Both changes attempted to take advantage of the growing popularity of singer and actor Mario Lanza, beginning with Mighty Mouse and The Pirates.[citation needed] Others included Gypsy Life and The Crackpot King. Mighty Mouse's adventures later focused on Pearl Pureheart and Oilcan Harry; the dialogue in these episodes were always sung by the characters.