cfeat: set die chance for female

storage/model/hamster.go

@@ -202,6 +202,16 @@ func Born(father *Hamster, mother *Hamster) ([]*Hamster, error) {
 	}
 	mother.Child = append(mother.Child, child...)
 	father.Child = append(father.Child, child...)
+
+	if mother.Age >= 500 {
+		var dieRoll = randNumber(0, 100)
+		if (mother.Age < 525 && dieRoll <= 5) ||
+			(mother.Age >= 525 && mother.Age < 550 && dieRoll <= 10) ||
+			(mother.Age >= 550 && mother.Age < 575 && dieRoll <= 25) ||
+			(mother.Age >= 575 && dieRoll <= 75) {
+			mother.Die()
+		}
+	}
 	return child, nil
 }