Source: Clutch of Python molurus bivittatus,Tigerpython, Wikimedia
[ Choose one by trembling their muscles which never leave the nest until the young are hatched after mating season ], female pythons, [ Choose one by trembling their muscles after mating season which never leave the nest until the young are hatched ], warm their eggs [ Choose one which never leave the nest until the young are hatched after mating season by trembling their muscles ].
