Authenticated (01/06/07) by Dr John Ewen, Institute of Zoology, London.
http://www.zoo.cam.ac.uk/ioz/people/ewen.htm
Extra-pair parentage: The female mates with another male, outside of the monogamous relationship, resulting in one or more of the offspring being fathered by a male that is not the female's mate.
Invertebrates: Animals with no backbone.
Monogamous: Having only one mate during a breeding season, or throughout the breeding life of a pair.
Rhizomes: Thickened, branching, creeping storage stems. Although most rhizomes grow laterally just along or slightly below the soil's surface, some grow several inches deep. Roots grow from the underside of the rhizome, and during the growing season new growth sprouts from buds along the top.
Translocated: The movement of a species, by people, from one area to another.
Tree-fern: Any of various ferns, with a woody trunk-like stem and large divided fronds.