The saibling.

plural of Arctic char

The spider Pardosa glacialis.

Alternative spelling of archeopteryx

ancient; antediluvian; archaic; old; prehistoric; primitive

A specimen of the species Archaeopteryx lithographica, being the earliest and most primitive known bird, representing a transition in the evolution of dinosaurs to birds.

Alternative letter-case form of Arcadia

plural of black-arched moth

plural of Arctic loon

plural of arch doxy