胖瘦之間《二》
December 18th, 2005 
Mma Ramotswe liked to walk in her garden in the evening, taking care to move slowly and with firm tread; those who crept about at night risked stepping on a snake if they were not careful, as snakes move out of our way only if they feel vibrations in the ground. A light person ── a person of non-traditional build, for example ── was at far greater risk of being bitten by a snake for that very reason.—— Mma Precious Ramotswe,
In the Company of Cheerful Ladies by Alexander McCall Smith
啊！原來非洲人的「傳統體型」是物競天擇而來的。
