A device for collecting urine from a mammal including a base removably disposed in an operative position overlying at least an under portion of the mammal. An access opening is formed in the base in urine receiving relation to the mammal, when in the operative position. A receptacle, is removably connected to said base, in the urine receiving relation to the mammal, via said access opening and a closure, integrated in said receptacle, is disposable between an open orientation and a closed orientation, for receiving and retaining collected urine within an interior of the receptacle. The base may also include a retaining aperture disposed and structured to receive and retain a tale of the mammal therein, concurrent to said operative position.