An apparatus for housing an animal includes a top portion wherein an upper flange is disposed along the lower edge of the bottom portion. A locking member is movably mounted to the upper flange. The apparatus may also include a bottom portion wherein a lower flange is disposed along the upper bottom edge of the bottom portion. The locking member engages with the lower flange when the locking member is in the outwardly extending locking orientation, which is at least partially defined by the locking member structured to engage at least a portion of the lower flange in an abutting relation to prevent detachment of the bottom portion from the top portion while disposed in the outwardly extending locking orientation. The apparatus may include a biasing mechanism structured to normally dispose and maintain the locking member in the outwardly extending locking orientation.