Biology — Phylogeny: horses & zebras
The horse family Equidae (branch lengths ≈ MYA).
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(Horse:5,((Plains_zebra:2,Mountain_zebra:2):1,(Donkey:2,Onager:2):1):2);
The horse family Equidae (branch lengths ≈ MYA).
(Horse:5,((Plains_zebra:2,Mountain_zebra:2):1,(Donkey:2,Onager:2):1):2);