Question

this marine animal which can imitate human speech and even laughter​

Answer 1

dolphins

hope it helps

Answer 2

Whale

A whale called NOC at the National Marine Mammal Foundation in California has developed a way to mimic humans voices. Divers originally thought that visitors standing by the whale and dolphin enclosure were calling to them, but it transpired that the 'speech' was coming from a teenage white whale named NOC.

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