Some butterflies use a process similar to farting to rid their bodies of excess water, through a process called mud puddling. This is especially common in species living where monsoons fall, and it is more common in males than in females. The butterfly takes in the moisture, which can be urine from other animals or water from decaying plants. Then, its body uses the nutrients from the water. The moisture that is not needed is forcibly expelled from the other end. Many species, such as the Gluphisia septentrionis, even fart at regular 3 second intervals.