Marsupial: a diverse group of mammals characterised by their reproduction. The embryo is born 11-35 days after conception. The tiny newborn crawls into the marsupium (pouch) and attaches to a teat where it stays for a variable amount of time. They also differ from placental mammals in their dentition.
Omnivore: an organism that feeds on both plants and animals.
Placental/ Eutheria: a group of mammals characterised by their reproduction and physiological characteristics. The embryo is retained in the uterus, and born in an advanced state of development.
Subspecies: a different race of a species, which is geographically separated from other populations of that species.