I want to know more about Bowmanscapsul or Ultra- filtration Animal?

Did you mean Bowman's capsule? If so then it is a cup-like sac at the beginning of the tubular component of a nephron in the mammalian kidney that performs the first step in the filtration of blood to form urine. A glomerulus is enclosed in the sac. Fluids from blood in the glomerulus are collected in the Bowman's capsule and further processed along the nephron to form urine. This is known as ultrafiltration.