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8 Topic Pages Found in Animals & Veterinary Medicine and starting with the letter O
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Open Octopuses
Octopuses

Soft-bodied sea animal with a round or oval body and eight slender arms (tentacles) in a ring surrounding its mouth. They are solitary creatures,

Oilbird

common name for an owllike, cave-dwelling bird, Steatornis caripensis, belonging to the family Steatornithidae. It spends its days in dark caves,

Open opossum
opossum

( əpŏs'əm, pŏs'– ), name for several marsupials , or pouched mammals, of the family Didelphidae, native to Central and South America, with one species

oriole

common name applied to various perching birds of the Old (family Oriolidae) and New (family Icteridae) Worlds. The European orioles are allied to the

oryx

( ôr'ĭks ), name for several small, horselike antelopes , genus Oryx, found in deserts and arid scrublands of Africa and Arabia. They feed on grasses

Open Otters
Otters

name for a number of aquatic, carnivorous mammals of the weasel family, found on all continents except Australia. The common river otters of Eurasia

owl

Bird of prey of the order Strigiformes. The majority of owl species are nocturnal or crepuscular (active during twilight hours), although a small

oyster

bivalve mollusk found in beds in shallow, warm waters of all oceans. The shell is made up of two valves, the upper one flat and the lower convex, with