If a female giraffe is interested in a male giraffe, she will produce urine for him to taste, allowing him to check for hormones indicating her fertility.

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Why Is Bird Poop White?

Actually, bird poop, per se, is not white. Birds, unlike mammals, do not have separate exits for urine and feces. Both waste products are eliminated simultaneously through the cloaca. While mammals excrete nitrogenous wastes mostly in the form of urea, birds convert it to uric acid or guanine,