(humorous) A notional space monster invoked to explain the high failure rate of probes sent to Mars.

A route, taken by intercontinental aircraft for instance, which is the shortest distance between two destinations on the surface of the Earth; an arc of a great circle.

A giant anticyclonic storm on the planet Jupiter; first observed about 1665.

Lanius excubitor, a species of shrike.

A freshwater bird of Europe and Asia, Podiceps cristatus.

A large shark, Carcharodon carcharias, of coastal surface waters in all major oceans that feeds on fish and marine mammals.

(chiefly Canada, Michigan, informal) Canada

A large owl, Bubo virginianus, resident in North America, having tufts on its ears.

(UK, Ireland) A large member of the diver family, Gavia immer, commonly breeding in North America, where it is known as the as common loon.

An endangered parrot, Ara ambiguus, found in Central America.