Tortoiseshell Tortoiseshell Tortoiseshell or tortoise shell is a material produced from the shells of the larger species of tortoise and turtle, mainly the hawksbill sea turtle, which is an endangered species largely because of its exploitation for the material. The large size, fine colour and unusual form of the hawksbill's scutes make it especially suitable. The distinctive patterning is referred to in names such as the tortoiseshell cat, several breeds of guinea pig, and the common names of several species of the butterfly genera "Nymphalis" and "Aglais", and some other uses. Tortoiseshell was widely used from ancient times in the West
Hawksbill Station Jeff Vogel, a small indie game developer, as having influenced the design for his game "Exile: Escape from the Pit", saying that while most of the game's plotlines were his, this classic short story helped shape his ideas. Hawksbill Station Hawksbill Station is a science fiction novel by American writer Robert Silverberg. The novel is an expanded version of a short story first published in "Galaxy Science Fiction" in August 1967. The novel was published in 1968 and was released in the United Kingdom under the title "The Anvil of Time". Hawksbill Station was a penal colony in the Precambrian