Which of the following is not a mammal?

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Question

(D) $1$. $Dolphin$ is an aquatic mammal belonging to the class $Mammalia$.$2$. $Pangolin$ is a scaly mammal belonging to the order $Pholidota$.$3$. $E

Vedclass · Accepted Answer

Ostrich

Vedclass · Answer

(D) $1$. $Dolphin$ is an aquatic mammal belonging to the class $Mammalia$.$2$. $Pangolin$ is a scaly mammal belonging to the order $Pholidota$.$3$. $Echidna$ is a monotreme,which is a type of egg-laying mammal.$4$. $Ostrich$ is a flightless bird belonging to the class $Aves$. Therefore,it is not a mammal.

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