Assertion: platypus | /r/HasProperty | three types of monotremes
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text: The platypus, long-billed echidna (Zaglossus bruijnii), and short-billed echidna (Tachyglossus aculeatus) are three types of monotremes that have shown a degree of electroreception, either through physiological observation of electroreceptors on the bill skin or through behavioral demonstrations (Figure 2; Pettigrew 1999).