Coypu In turn, these two taxa share evolutionary affinities with other Myocastorini genera: "Proechimys" and "Hoplomys" (armored rats) on the one hand, and "Thrichomys" on the other hand. The coypu somewhat resembles a very large rat, or a beaver with a small tail. Adults are typically in weight, and in body length, with a 30 to 45 cm (12 to 18 in) tail. It is possible for coypu to weigh up to , although adults usually average . They have coarse, darkish brown outer fur with soft dense grey under fur, also called the nutria. Three distinguishing features are a white
Hayden (given name) but down from No. 52 in 2012 and No. 43 in 2011. Hayden (given name) Hayden is a given name in the English language. The name is variant of the given name "Haydn", which is derived from the surname "Haydn" in honour of composer Joseph Haydn (1732–1809). The surname "Haydn" originated as a respelling of the nickname "Heiden", meaning "". The name is derived from the Middle High German "heiden", and from the Old High German "heidano". The form "Haydn" was generally considered a masculine given name up until the mid 20th century. The popularity of "Hayden" has been influenced