Yes.
Hard.
no
Dolphins have about 300 bones.
Yes :)
Yes, they do. Dolphins have a complete skeletal system.
no they have a normal one! no they have a normal one!
soft you can bend and hard you can not
Seal's bones are hard.
As dolphins, they are automatically mammals and thus vertebrates. If it has bones, it´s a vertebrate.
Dolphins are vertebrate's. they have back bones the same as humans whales and all other mammal's.
You can tell by their bones.
A dolphin can have upto 252 teeth. Its back bone has about 52 bones. The skull has 34 bones. The ribs have 30 bones. They have 1 sternum. 62 bones in their limbs. That is a total of... 179 bones. (not counting the teeth, youll have to add that on.)