What animals produce uric acid?

Uric acid is primarily produced by birds, reptiles, and some terrestrial invertebrates, such as insects and arachnids. These animals excrete nitrogenous waste in a semi-solid form, which helps conserve water, making it advantageous for survival in arid environments. In addition, certain mammals, like the giant ground sloth, also produced uric acid, though most mammals primarily excrete urea.