Phantse zonke ii-vertebrates eziphilayo zizala ngokuzala ngokwesondo, ngokunjalo needinosaurs.Iimpawu zesini zezilwanyana eziphilayo zihlala zinezibonakaliso zangaphandle ezicacileyo, ngoko kulula ukuhlukanisa amadoda kunye nabasetyhini.Umzekelo, iipikoko eziyindoda zinentsiba ezintle zomsila, iingonyama eziyindoda zine...
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