Help make Alexa smarter on Alexa Answers. Sign in with Amazon


Why don't birds urinate?

Birds convert nitrogen to uric acid, this is metabolically more costly, but saves water and weight, as it is less toxic and doesn't need to be diluted so much. Birds therefore don't have a urethra, and don't pee – all waste leaves via the anus.

{{ relativeTimeResolver(1571201883874) }}

Points points 113
Rating 0

Similar Questions
Sign in to view all similar questions
Animals 1 Answer
Animals 2 Answers

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world