Science Quiz / 'O' Natural World

Random Science or Animal Quiz

Can you name the things in the natural world that begin with the letter 'O'?

 Plays Quiz Updated Aug 15, 2018

Also try: 'N' Natural World
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Which small oval fruit with a hard stone and bitter flesh is used as food and as a source of oil?
Which Asian ape with long red hair and long arms is nicknamed 'The Old Man of the Forest'?
Which swollen edible bulb with a pungent taste and smell is used as a vegetable?
Which complex flower is often showy or bizarrely shaped and has a large specialized lip and a spur?
Which mollusk has eight sucker-bearing arms, a sac-like body and no skeleton?
Red, English and Sessile are all names of which tree of the genus Quercus?
Which American marsupial has a naked prehensile tail and hind feet with an opposable thumb?
By what other name is the fish-, seal- and penguin-eating 'Killer Whale' known?
Which wild cat native to South and Central America has an orange-yellow coat marked with black stripes and spots?
What name is given to a desert spring or similar water source?
Which bivalve mollusc is often eaten raw and may also be a source of pearls?
Which domesticated animal also called a bullock is used as a draft animal?
Which large antelope living in arid regions of Africa and Arabia has dark markings on the face and long horns?
Which large fish-eating bird of prey with long narrow wings and a white underside is also called a 'fish hawk'?
Which term applies to an animal or person that eats a variety of food of both plant and animal origin?
Barn, Spectacled and Tawny are all names of which type of nocturnal bird?
Which cereal grain is most commonly used as a livestock feed?
Which mammal native to Central Africa is also called the 'forest giraffe' or 'zebra giraffe'?
Which semiaquatic, fish and invertebrate eating mammal has dense fur and webbed feet?
Which African flightless bird is the largest bird in the world?
Which Eurasian poppy with ornamental flowers is the source of morphine and heroin?

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