mimicry, n.Trivia

Ninjas sometimes used animal calls as secret signals.

Mimicry of ourselves is highly valued, as evidenced by a Dutch study where waitresses who repeated their customers orders increase their tips by 70% over those who positively reinforce the order ("sure", "great choice").

Beluga whales can mimic human speech, and have caused divers to inadvertently surface due to them mimicing commands to surface