UPSC Prelims 2008 · General Studies

Question 146: Environment and Ecology

Among the following, which one is not an ape?

aGibbon

bGorilla

cLangur

dOrangutan

AnswerThe answer is (c).

A langur is a monkey, a tailed Old World monkey, and not an ape. Apes have no tail: they are the gibbon (a lesser ape) and the great apes, which are the gorilla, orangutan, chimpanzee and bonobo. Telling apes from monkeys by the tail is the quickest check.

Why each option is right or wrong

(a) The gibbon is a lesser ape.
(b) The gorilla is a great ape.
(c) The langur is a monkey, not an ape.
(d) The orangutan is a great ape.

Explanation: written by UPSC Grade, not by UPSC.

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Source: UPSC, Civil Services (Preliminary) Examination 2008, General Studies. UPSC's own paper isn't online; the words are from a published compilation. The paper on upsc.gov.in.