They are mammals, so of course they have backbones.
Yes, manatees belong to the Kingdom - Animalia, and the Phylum - Chordata (making them chordates). All chordates have internal backbones (vertebrae); therefore a manatee is a vertebrate.
they are both mammals
No there is more with backbones
Manatees are consumers.
Pigs do have backbones.
No backbones
it has 2 backbones
All snakes have backbones.
no one. manatees are docile.
yes manatees do exist
Manatees are made from God
all fishes have backbones