為什麼小便是黃色的?

Why is urine yellow?

healthy PIG
Urochrome is a pigment in urine that causes it to appear yellow. Drinking fluids dilutes the color, so bright yellow urine may indicate dehydration. Some vitamins, medications, and medical conditions can also cause this condition.
為什麼在游泳池裡撒尿不是一個好主意?

Why is peeing in a swimming pool a bad idea?

healthy PIG
To pee or not to pee? This is the question kids, and even adults, ask themselves every summer as they swim in public pools. Are there risks to pee...