Cow was a Cow who was pregnant. She only appeared in two strips: One where she tells him she is pregnant, to which he replied "wow, you must be having a cow." (Meaning calf) but she mistook the imformation as her freaking out. The other strip had her telling rat she was pregnant, and he told her she shouldn't be drinking coffe, she says she dosen't want decaf, and rat replies with "Then you shouldn't have had sex with de Bull". She has not appeared since.