第八十一天：腸胃炎的臭豬Ｂ

腸胃炎的臭豬Ｂ要快Ｄ好番呀！！！！




另外，如果有人話你係豬，你應該覺得開心，因為他在讚你！

Wonder of the Day #360: Why Do Pigs Like Mud?


You’ve probably noticed that most pigs are not very tan. In fact, their light pink skin can get sunburned very easily.

To help protect their skin from sunburn, pigs use mud as a form of sunscreen. When mud dries on their skin, it forms a barrier against the sun’s harmful ultraviolet rays.

Rolling around in the mud helps to keep pigs from overheating when it gets too hot outside.

Some pig farmers now use water sprinklers instead of mud to keep pigs cool in warm months. Mud, however, tends to keep pigs cooler longer because the water in mud evaporates more slowly than pure water.

http://wonderopolis.org/wonder/why-do-pigs-like-mud/