They developed "hands" and "feet" with five or more digits; the skin became more capable of retaining body fluids and resisting desiccation.
ðeɪ dɪvˈɛləpt "hˈændz" ænd "fˈiːt" wɪð fˈaɪv ɔːɹ mˈoːɹ dˈɪdʒɪts; ðə skˈɪn bɪkˌeɪm mˈoːɹ kˈeɪpəbəl ʌv ɹᵻtˈeɪnɪŋ bˈɑːdi flˈuːɪdz ænd ɹᵻzˈɪstɪŋ dˌɛsɪkˈeɪʃən.