Answer: manatees

AnswerCrossword Clue
MANATEESDenizens of mangrove swamps
MANATEESDugong relatives
MANATEESSea cows
MANATEES"at"
MANATEESFlippered mammals
MANATEESAquatic mammals
MANATEESSea cows.
MANATEESSea mammals.
MANATEESDugongs' cousins
MANATEESLarge Fla. sea creatures
MANATEESEndangered animals
MANATEESDugongs' kin
MANATEESEverglades swimmers
MANATEESSeacows
manateesplant-eating aquatic mammal
manateesMANATEE, a large aquatic mammal, also MANATI