Urine color can be a key indicator of hydration and health. Light yellow or pale urine signals good hydration, while darker colors may suggest dehydration. Unusual colors or cloudiness can ...

Photograph By Martin Van Aswegen, NOAA Permit 21476 In the deep blue water, a one-month-old humpback whale nuzzles up to its mother. Then, a cloud of dark yellow urine gushes into the water ...