These seem from hunter/gatherers with a cycle of feast/famine in a harsh climate. Those who could most efficiently store energy in fat would be most likely to s

These seem from hunter/gatherers with a cycle of feast/famine in a harsh climate. Those who could most efficiently store energy in fat would be most likely to survive the cycle. And undoubtedly both infant and maternal mortality would be high. Fecundity might be both a valued individual and group trait. One or more of these traits might be in the designs of these figurines. Possibly they are talismans...