Its name is derived from the Latin for "sewer", and it can be found in every vertebrate but placental mammals. It is the most common excretory organ among amphibians, birds, reptiles, and some fish, and it is present in the platypus and the echidna. FTP, name this chamber and outlet, into which the intestinal, urinary, and 
Its name is derived from the Latin for "sewer", and it can be found in every vertebrate but placental mammals. It is the most common excretory organ among amphibians, birds, reptiles, and some fish, and it is present in the platypus and the echidna. FTP, name this chamber and outlet, into which the intestinal, urinary, and genital tracts all open.
Its name is derived from the Latin for "sewer", and it can be found in every vertebrate but placental mammals.
{cloaca}