▁and ▁also ▁of ▁prom is cu ous ▁inter course , ▁because ▁t urt les ▁were ▁once ▁thought ▁to ▁conce ive ▁by ▁thought ▁alone , ▁making ▁pat ern ity ▁impossible ▁to ▁prove . ▁E gg s ▁are ▁the ▁pro gen y ▁of ▁t urt les ▁and ▁other ▁lower ▁animals , ▁so ▁the ▁word ▁d àn ▁( <0xE8> <0x9B> <0x8B> ) ▁is ▁a ▁met onym ▁for ▁off spring . ▁▁ ▁w á ng b ā ▁() ▁/ ▁w à ng b ā ▁() ▁= ▁soft - shell ▁t urt le ; ▁this ▁was ▁an ▁ins ult ▁as ▁early ▁as ▁the ▁Song ▁D ynast y . ▁ ▁w á ng b ā d àn ▁( , ▁inform al ▁simplified : ▁) ▁/ ▁w à ng b ā g ā oz i ▁() ▁= ▁bast ard ▁( lit : ▁" W ang ▁eight ▁eggs ▁child .") ▁ ▁gu ī ▁s ū n zi ▁() ▁/ ▁gu ī ▁ér zi ▁() ▁= ▁bast ard ▁( lit . ▁" t urt le ▁grand son " ▁and ▁" t urt le ▁son ") ▁ ▁d à i ▁l <0xC7> <0x9C> m à oz i ▁() ▁= ▁to ▁be ▁a ▁c uck old ▁( lit . ▁" we ar ▁a ▁green ▁hat ," ▁supposed ly ▁because ▁male ▁bro th el ▁workers ▁in ▁the ▁Tang ▁D ynast y ▁had ▁to ▁wear ▁green ▁h ats ) ▁ ▁z áz h ǒ ng ▁() ▁= ▁mixed ▁seed , ▁half - c aste , ▁half ▁bre ed , ▁hy brid , ▁il leg it imate