LITTLE KNOWN FACTS ABOUT PETS.

Mitochondrial DNA suggests that almost all contemporary dogs tumble into 1 of 4 monophyletic haplogroups that are named haplogroups A, B, C, and D. Nearly all of dogs drop within just haplogroup A. The mDNA "molecular clock" indicates that 22,800 YBP the very first genetic divergence (split) transpired in haplogroup A, leading to the lineages A1b a