[Mr Fox]

http://en.wikipedia.org/wiki/Fetus_in_fetu "£parasitic twin is the
result of a situation related to the process that results in
teratomas, vanishing twin, and conjoined twins; two unique embryos
begin developing in utero, but something goes wrong. Parasitic twins
are also known as asymmetrical conjoined twins or unequal conjoined
twins. Parasitic twins are a variation on conjoined twins—except one
of the twins stopped developing during gestation and is now vestigial
to a healthy, otherwise mostly fully-formed individual twin."


Re you an Krueger; which is the healthy one and which the parasite?