you should know about when this order of mammals evolved, what types of animals it includes, and some major characteristics of the order.
(this order of mammals; evolved; ) (it; includes; some major characteristics of the order) Context(it includes,List([80, 91))):(you; should know; about when this order of mammals evolved)
it includes,List([80, 91))
this order of mammals it you
evolved includes should know
some major characteristics of the order
about when this order of mammals evolved