Mammal

Warm-blooded, big-brained animal with a backbone. All young mammals are suckled by their mothers. Living mammals, members of the class Mannalia are divided into monotremes such as duck-billed platypus; marsupials, such as kangaroos, whose offspring are not fully formed when born but complete their development attached to a nipple, generally in the mother’s pouch; and placentals, whose offspring are nourished at the embryonic stage by means of a placenta, and are born at an advanced stage of development.

Magna Carta

Charter signed by king john of England (1215) in face of demands by barons who secured feudal rights and established areas over which king had no jurisdiction. It is interpreted throughout English history as guaranteeing certain political and civil liberties.