The bill skin of the platypus and echidna detects tactile stimulation via the push-rod, thought to be a type of mechanoreceptor.


"The other prominent receptor in the bill skin of both the platypus and echidna is the 'pushrod,' which is thought to be a mechanoreceptor responding to tactile stimulation." (Fowler and Miller 2003:279)

Zoo and Wild Animal Medicine

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Living System/s