namely, the little four- tives, the asses and zebras. The following is an ab- toed Hyracotherium. Darwin’s great work on the drawing a heavy load, causes the backbone to curve stract of the lectures covering the first series of topics “Origin of Species’ (1859) set naturalists searching somewhat at… … natural adjustments were what first made toes and the great enlargement of the mid- Middle Toe. the horse valuable to man. Thus the horse dle toe; (3) the coalescence or fusion of is a quadruped, seeking safety and food by parts, as in the case of certain wrist bones so as to bring the point of…
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