What animal produces little urine?

It's tricky to say definitively which animal produces the *least* amount of urine, as there are many factors at play like diet, environment, and individual variation. However, some animals are known for having very low urine output due to adaptations to their environments:

* Desert rodents: Animals like kangaroo rats and jerboas live in extremely arid environments and have evolved to conserve water. They have specialized kidneys that concentrate urine to a very high degree, meaning they produce very little urine.

* Camels: While camels aren't considered "low urine producers" in the sense of desert rodents, their urine concentration is high, allowing them to conserve water in harsh environments.

* Seabirds: Seabirds have special salt glands that allow them to excrete excess salt through their nostrils, reducing the need to produce much urine.

It's important to note that these are just examples, and there are likely other animals that produce low amounts of urine for various reasons.