Question

Which of the following are primates?
A) Monkey
B) Lemur
C) Baboon
D) All of the above

Answer 1

Hint: Primates emerged around 85-55 million years ago. They arose as small terrestrial mammals and gradually adapted to live in trees of the forest. The main characteristics of these animals are colour vision, visual activity, and a large brain. The apes belong to the category of primates.

Complete answer:
The primates belong to the order of primates. They are among the most social animals. They emerged several million years ago and are adapted to living in the trees. They can change fast with the environment. They have large brains, shoulder girdle, dextrous hands etc. The smallest primate is Madame Berthe’s mouse lemur which weighs 30g and the largest are the gorillas which weigh several hundred kgs.

Some characteristics of primates are-
They have a high sense of vision and the sense of smell is less as compared to other mammals like in the case of monkey.
The primates have tail except for the humans.
They have an opposable thumb.
Primates show sexual dimorphism.
They are mostly terrestrial. For example gorillas, baboons, humans but the species are adapted to the arboreal life.

The primates live on a land walk of two limbs whereas the others use four limbs for locomotion.
Primates use vocalisation, facial expressions and gestures to convey emotions.

So we can say that monkey, lemurs, baboons, humans are all primates. The correct answer is ‘D’.


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