a group of rothschild's giraffes cross

africa animal blood temperature browser carotid rete circulation coat pattern conservation declining numbers drinking environment evolution geophagy giraffa camelopardalis giraffe giraffidae green habitat loss herbivore highest pressure kenya lake mburo national park long legs longest neck mammal morphology natural nature nonterritorial nubian oesteophagy ossicones pecora physiology placental rothschilds ruminantia safari savanna savannah sexual dimorphism skull protrusions sociable tall tongue uganda vomeronasal organ wild wilderness wildlife group rothschild#39aph39#s giraffes cross road murchison uganda subspecies