Birds convert nitrogen to uric acid instead. Although it is metabolically costly, it is less toxic and does not require much dilution, saving water and weight. Therefore, birds do not have a urethra and do not pee. All excrement comes out of the anus.
Are there any animals that don't poop or pee?
# 1 Non-pooping animals: Birds Birds do not poop like mammals, but allow urine and feces to pass separately. Instead, there is one passage called the cloaca that excretes both urine and feces. 2021
Which animals can hold pee?
An elephant's bladder can hold about 5 gallons (18 liters) of water, but can pee as fast as a cat. New studies show that most mammals larger than rats urinate in about the same amount of time, 21 seconds. 2014
Do birds urinate?
Birds brighten our lives. .. The answer lies in the fact that birds, unlike mammals, do not urinate. Instead, they discharge nitrogen waste in the form of uric acid, which appears as a white paste. Also, uric acid is difficult to dissolve in water.
What animals don't poop?
Are there any animals that don't poop? In fact, it is. Tardigrades-These little alien-like creatures are excreted only when they molt. Therefore, the problem of "feces" did not actually spit out poop, as we actually explain.