Assertion: manatee | /r/HasProperty | sirenian
Facets:
Source sentences:
text: Manatees and dugongs (sirenians) are the only vegetarian marine mammals alive today.
text: The manatee is a sirenian—an order of aquatic mammals that includes three species of manatees and their Pacific cousin, the dugong.
text: Manatees are sirenians related to and resembling the dugong but differing most notably in the shape of the tail.