Two.4 mya Along with the emergence of A. microta.[60][61] Genome sequencing of the large panda implies the dietary swap could have initiated from your lack of the sole umami taste receptor, encoded because of the genes TAS1R1 and TAS1R3 (also known as T1R1 and T1R3), resulting from two frameshift mutations https://cesar171zt.blogtov.com/16741313/facts-about-panda-revealed